"Lisa, what's going on, who was that man?" Septimius asked, his voice edging into panic. "Why is everything going crazy?" Lily was a little miffed. She'd been enjoying the tight hug that T'Chone had wrapped her in. He'd been scared for her, and the knowledge that he cared so much warmed her. It was really nice, to be able to hold someone close, to know that you mattered, really mattered, to them.
"I don't know." She lied. "I'm just as confused as you are." Poor Septimius. Lily thought. He really wasn't prepared for any of this, maybe they could spare him that madness.
T'Chone grabbed her arm, then, and hissed in her ear. "I think we should just tell him the truth."
"I heard that." Septimius grumbled, and T'Chone shrugged, chagrined.
Lily sighed. She was all for telling the truth in principle, but if they told Septimius the truth now, he was liable to think they were complete loons. Still, there was nothing for it. For better or worse, their part in the mission was done.
"Alright, strap in." Lily grinned. "Basically, that man is Harry Potter, our dad. He's from another timeline, universe… whatever, where things weren't nearly so horrible as they are here. His universe got destroyed and turned into this one. We're trying to set things right. Oh, he's also your half-brother, which makes me your niece. Hi!" She held out a hand with a smile that she hoped wasn't manic. "My real name's Lily, and this is my brother T'Chone."
He looked like he was about to faint. Poor, poor Septimius. All he could think to say was. "But… you don't look like siblings."
"We're half siblings." T'Chone said. "And that's a whole other story." Lily nodded emphatically to that.
"You're serious?" Septimius asked. "You aren't pulling my leg?"
"I don't think now is the time for jokes." T'Chone said.
"Excuse me." Septimius said. "I think I need a-" A chair appeared for him. He sat in it, but looked at them questioningly. "Did either of you…?"
"Oh, that's just the Room of Requirement. It gives you whatever you want." Lily said. "We're not secret wandless prodigies like my dad is."
"Cool." He jerked his head in a nod. "Cool, cool, cool. Is there- hold on!" He sputtered. "What are you doing lying about everything? If you're trying to fix things, why not just talk to the Professors about it? They could help!"
"Hehe." Lily scratched the back of her head. "That sounds great in principle, if half the staff weren't…" She searched for the term.
"Psychopaths?" T'Chone offered. "Evil? Murderous? Complicit in genocide?" Quite a bit blunter than how she'd put it, but that was T'Chone for you.
"They're not that bad." Septimius argued. "It's a war, everyone has to get their hands a little dirty, that doesn't mean they're evil."
"It's a bit… more than that." Lily said carefully. Neville, Ron, and Ginny had an entire routine choreographed, where they detailed all the Orders' sins. But she'd seen more than a few tales of the Order's brutality while on the run, and perhaps a more personal tale would get through to him. "When I was on the run, with my mother, we went through Bulgaria. There used to be a Veela enclave there, before the war. They'd long been scattered, but they still lived with the local population."
Septimius paled, seeing where this was going.
"There'd been a disturbance, in a town that we'd stopped over in for the night. Turns out a group of wizards had gone… hunting. My mom didn't let me see the results, but I knew. They hadn't just killed the Veela, they… played." She bowed her head, and T'Chone put a hand on her shoulder, his eyes glistening. He'd been spared the worst of the war, and she didn't want to lay that burden on him. She didn't want the things that haunted her nightmares to become his.
Still, Septimius, blindly, persisted. "That's… awful, but those were just bad apples, right? Surely-"
"Wake up!" T'Chone stomped his foot, his protective instincts riled. "Why do you think everyone hates you guys? Don't tell me you actually buy the crap their feeding you. No ones fucking jealous of your 'superiority'." The dryness in his voice was biting, as he air-quoted aggressively. "You think the Wakandans, Sorcerers, Mutants, or Goblins are fans of Hydra? They hate the Order's guts because they've been killing, pillaging, and raping all across the world. Maybe if you lot hadn't been such massive pricks, we all could have banded together to hand Hela her ass!"
"T'Chone-" Lily tried to calm him, seeing the horror in Septimius' eyes. "I think you made your point." T'Chone let out a breath, the tension unwinding from his body.
"So… what are you trying to do? Destroy the Order?" Septimius asked in horror. "Leave all the students to be killed by Hela because of things that others did?"
"No." T'Chone said definitely. "There's a better way. We're building movement where everyone is welcome. You could come with us. You'd be welcome. You're family."
Septimius wavered. "I can't just abandon my mum. She's all I have."
"You could have us." Lily said.
"Well… I'm all she has." Septimius bowed his head. "She'll be so scared for me if I leave during a night like this. I can't. I can't."
Lily and T'Chone glanced at each other. She'd expected this response, but it still disappointed her. It didn't sit right with her. Just… leaving him. If only there was a way they could keep in touch… with a clink, a pair of mirrors appeared between them.
"Huh?" She hummed, picking them up.
"Oh." T'Chone said. "Dad told us a story about these, remember? The one about his Godfather?" They'd both eaten up their dad's stories, hanging onto every word. She remembered.
"Well, we can't change your mind." Lily said, handing Septimius one of the mirrors. "But if you ever need us, all you need to do is call."
-----
Wanda watched the scene with curiosity. She'd seen this before, in her dreams. The details of those dreams tended to slip away from her, but the man hadn't and neither had the feelings he evoked. For this scene, those emotions were guilt and contrition. Harry was there, as he usually was in her dreams. He was in battle with three other women. Skye and Natasha were under the thrall of the third, who wielded a scepter that held a blue gem. Wanda was there as well, of course. With a twist of her magic, she released Skye and Nat. The third woman scowled.
"You're being ridiculous." She spat. "You're part of Hydra now, Wanda. Do you think you can just… walk away? You can't. You're ours, and now the Avengers know it. They'll never truly accept you after what you've done."
Wanda winced at the woman's words. She knew well that there was a very good reason for the guilt she felt from this memory. Over time, with the help of a dream journal she'd begun to piece together events, people, and places. She knew that in this other life, she'd once worked for Hydra. She knew that Harry had given her a second chance, that he'd saved her soul. All that effort hadn't helped her answer the big questions, however. Where did these dreams come from? Why did she have these dreams, that almost felt like memories? Where was Harry Potter now?
Harry- she'd actually met him, in real life, she remembered suddenly. Seeing him in the flesh had felt like a revelation, her whole body had felt charged. After all, he was the man- quite literally- of her dreams. She hadn't been able to resist reaching out for him, but when she touched him, a green energy had arced from his body, and now she was here.
"I remember this." A voice said, her voice. "This is when I met Harry." Wanda whipped around, and saw herself.
Well, not quite. This woman looked a little older, but something about her seemed… at peace. "Are you…?" She let the question hang.
"I'm her." Her doppelganger nodded to the Wanda in the memory. "Or rather, who she'd become."
"How is this happening?" Wanda asked. "Do you know why I'm dreaming of your life?"
"I'm not quite sure." Her double shrugged. "Though I'd bet that Harry knows." The scene around them shifted to something much more mundane. It was a dinner, people eating and laughing- Wanda, Harry, her brother, others she'd never met- but she could feel the happiness and affection of this memory. Wanda knew these feelings of camaraderie, in her own life. She had her father, her brother, and the mutants. It was odd, feeling that same sense of fellowship with people she didn't know.
"So what, we wait for him to come give us answers?" Wanda scoffed.
"Hardly." Her double said, twisting her hand. "We can bring him to us." With a grunt, Harry tumbled into existence. He hadn't even picked himself up when Wanda's double was on him. "Harry!"
"Wanda?" Harry gasped as she embraced him, and Wanda felt her heart twang at the tenderness of the moment, and sense of loss. She'd long since learned to love Harry. These dreams had become well worn, and those feelings familiar. But Harry's love wasn't for her, it was for her.
"Its me. Its me." Wanda's double repeated. "I don't know how but-"
"Its okay." Harry said. "I can explain." Then she kissed him. It wasn't a chaste kiss, either. They kissed like they were dying of thirst, and they wanted to drown in each other. Wanda couldn't look away. She'd seen plenty of this in her dreams, and knew it normally ended with both of them naked and in the throes of passion, often along with other women. There'd been a time, around when she was fifteen, when she had this sort of dream every night. Far more times than she could count, she'd woken up hot and wanting. She knew what it was like, to miss the solidity of a body she'd never known, to feel a keen emptiness in her core that had never been sated, to yearn for a love and trust which she'd never been granted. It was something that fingers and toys could never satiate, nothing could, except Harry himself. Just as she'd learned to love this man she'd never met; she'd learned to want him too.
She'd gone to Professor Xavier, eventually. It had been embarrassing, but it had become clear to her that more than just hormones were at work, especially once that first crash of sex dreams had subsided, and she'd begun to see other things as well. He had been some help, advising her to write a dream journal and meditate, but he hadn't been able to answer the big questions.
Wanda's double moaned, and the kiss deepened. How good it must feel, Wanda wondered. If only she could be in her place. She tore at his shirt, letting it fall to the floor. Wanda squeaked at the sudden reveal of skin, and the noise was enough to bring them back. "Oh." Wanda's double panted. "Sorry, I went overboard."
"No problem." Harry breathed, dazed. "Go overboard whenever you like."
Wanda's double chuckled. "Actually, I was talking to mini-me." Harry turned to her with a raised eyebrow.
"Hey, I'm nineteen!" She protested. Perhaps that would have been more convincing if her face weren't beet red and she could hardly look at Harry's chest.
Her twin nodded indulgently. "Sorry, you're very grown up."
"Hey." Harry said, approaching her carefully. "Sorry about that, I know this all must be confusing."
"You have no idea!" She snapped, Harry following along apologetically. "All these dreams, I can hardly make sense of them!" Harry blinked in shock.
"Dreams?"
"Every night!" Wanda said. "A battle, or a get together, or-" She stopped herself, but as if her words had prompted it, their surroundings changed. She and Harry were in bed, Harry was on top of her, teasing her entrance with his- she turned away, trying to fight the desire unfurling within her, only to be faced with a shirtless Harry, looking at her in concern. She looked at the floor, willing the vision to disappear. Eventually it did, replaced by a bedroom. Great.
"I'm sorry." He said, and why did he have to sound so sweet and concerned? "I've been there- visions you can't control. That must be hard."
"The hardest thing about them was that you weren't there when she woke up." The other Wanda said. She didn't deny it.
Harry, somehow, softened further and she felt compelled to look back at him- big mistake. "I'm here now. I'm sorry I took so long." She melted at the warmth in his eyes, those beautiful green eyes that had called to her from her dreams for so long.
"Harry." She swooned. She'd loved him for so long, so impotently, and she couldn't bring herself to fight it anymore. "I love you."
Harry blinked at her in shock. "But… you don't even know me."
She smiled. "I know you." At first, she hadn't understood why she loved him. But after piecing her other life together, she'd begun to understand him- she saw his bravery, his forgiving nature, his selflessness, and the way he made everyone around him better. "I know that I was your enemy, and you gave me a second chance when no one else would. I know that you're far more reckless with your life than I'd like. I know that you lost so much, but you kept on going. I know that… you're a really good kisser."
Her double grinned. "Oh, he is. Why don't you show her?" Wanda squeaked again.
"Did you just call me here for a threesome?" Harry arched an eyebrow. "Not that I'm complaining mind you. Your dad was ready to skewer me when you called."
"Well, I figured you knew how we got here, and you do." Her double said. "Do you know how to resolve… this?"
"Not… exactly." Harry admitted. "It seems I can instantly reawaken the memories of anyone I've had sex with. But with the others it just happened when I touched them. For anyone else, it takes longer. The split personality thing is… new."
"Well, none of your other lovers are a powerful telepath." The other Wanda pointed out. "It would not be so simple to alter my mind without my consent."
"True."
"But that does suggest a solution." She continued. "Obviously, you need to have sex with her."
"Obviously?" Harry said in amusement, while Wanda choked on air.
"Think about it." She said. "Sex is a condition for recovering memories. You need my 'consent' to alter my mind. What better consent is there, than sexual consent?"
"Your logic is impeccable as always." Harry deadpanned.
"So." She turned back to Wanda. "What do you say?"
Wanda felt herself flush all over, and Harry looked sympathetic. "Its okay, if you're not ready, we can probably find another-"
"No!" She burst out.
"No?"
"I mean, we can do it, have sex I mean." She said, feeling like she was about to melt into a puddle. "If you want, that is."
Harry sighed. "I would, absolutely. But it's been a very long day. I don't know how well I'd be able to perform."
Wanda's doubled frowned. "Then let us take care of you, Harry."
"I… oh." Harry breathed, sitting on the edge of the bed. "Okay."
"What happened?" Wanda asked.
He was silent for a long moment. "My mother is evil." Harry said, a bitterness in his voice. "I'm not sure if she's even alive or if we killed her." Grief joined the bitterness.
Wanda's double stroked Harry's hair, pressing a kiss to his temple. "I'm sorry."
"I was weak." He continued. "I couldn't kill her, even though she's tortured my friends, killed people."
"That doesn't make you weak, Harry. That makes you human." The other Wanda said. Wanda couldn't imagine what she'd do if her father turned evil, and this was Harry. "You love people so much, that's one of the things we adore about you."
"We?"
"Well, Me and me." Wanda chuckled. "Isn't that right, mini-me?" Wanda pouted at the nickname, but she nodded.
"Come here." Her double said, with a 'come-hither' motion. Wanda obeyed, unable to look away. She was captivated by his eyes that peered up at her with such vulnerability. "She's been dreaming of this for years." Her double continued to rat her out. "Did you know she dreamed about us having sex nearly every night for over a year? She always got herself off afterwards."
"Why do you have to say all of that?" Wanda cringed.
"Are you saying I'm wrong?"
"No, but- but-" Wanda stuttered, unable to muster a defense.
"Come sit down." Her double said, taking her own seat beside Harry. Wanda claimed the other side, tentatively resting and arm on his bicep. She savored how the muscles moved as he lifted his arm up to cup her cheek. Even that simple touch felt good, felt right. He leaned in, and she leaned in with him, parting her lips as they met his, and oh…
She'd barely kissed anyone, outside a few fumbling encounters that she hadn't cared to repeat. They hadn't felt anything like her dreams. This was exactly like her dreams, except in her dreams she'd felt far more confident, she'd known exactly what do to. Harry sensed her hesitation and pulled back. She tried to follow his lips, and he chuckled. "Its okay, Wanda." He said. "Just follow my lead." He kissed her again, and she let herself get swept away in the warmth and softness of his mouth. She clung to him, one hand remaining on his bicep while the other went to touch his chest. She whined when they parted next, resting her head against his chest. He was the most intoxicating thing she'd ever had, and she wanted more.
"You should feel how he feels now." Her counterpart said, her voice deepening. "How much he wants to make you whimper, moan, and scream. How he wants to be inside you, and make you cum on his cock." She couldn't resist the temptation and reached out with her telepathy. She slipped into his mind so easily, he was completely open to her, and she felt him. She could feel his strength, the enhanced muscles that lay beneath her fingers and the buzzing power of his magic. She could feel his affection and desire, all directed at her, and she wanted to drown in it.
But alongside all that, she could feel Harry's cock, and it made her knees go weak. He did want to be inside her, with a desire that felt like the masculine counterpart to her own. His arousal, however, was closer to smoldering embers than a raging inferno. She wanted to stoke him, see exactly how hot he could burn. She was starting to understand the other Wanda's fixation with him having sex with other women.
"She's a virgin, you know." Her counterpart said into Harry's ear, and she felt his arousal pulse at her words. "Just like I was. You've already gone further than anyone else has."
"Nothing compared to my dreams." Wanda whined. "To you."
"God, Wanda." Harry growled. "I know what you're doing."
"Its working, though." She said cheekily, her hand sliding down to his crotch- she was far bolder than Wanda had dared be. "Mini-me." She called. "Be a good girl and strip for him. Put on a show."
She stepped back and went to strip, one piece of clothing at a time. "Look at her. Isn't she beautiful?" Her double cooed. Wanda could feel Harry's agreement, could feel how irresistible he found her, how tempting. She felt so shameless as she puffed out her chest for Harry's seeking eyes. His desire captivated her, dispelling any sense of modesty or shame.
"Someone's got an ego." Harry said, despite himself. The older Wanda undid his pants in retribution, grabbing hold of his cock and freeing it from the fabric. Wanda moaned. It felt so good to have his cock freed, to feel his masculinity project outwards without restriction as it engorged to fullness. Those slender fingers felt so good around him, too, stroking expertly, but she knew that he could feel so much better. She could sense in his mind the desire to penetrate, to pin her down and plunge his raging shaft into her slick warmth. Her knees wobbled. God, she wanted that too.
She bent over, pulling her panties down. She knew he could see how wet she was, how much she wanted him. "But its true." Older Wanda insisted. "You can't wait to sink yourself into her slick, teen pussy."
"You make me sound like some sort of pervert." Harry mumbled.
"Baby, how many women do you have relationships with?"
"Point taken." Harry sounded amusingly chastised, and Wanda couldn't help but look over her shoulder at the bantering couple. "But you're half the reason that number is so high."
"Don't get me wrong, I love it." Wanda assured him, her voice still teasing. "You love so much, and so freely, and the same goes for lust."
"Now you're making it sound all-" Harry cut his words off as Wanda dipped down to her knees, staring up at him with wide eyes. He looked so impressive from this angle. His cock was calling out to her, it looked so thick and flushed, and it twitched like something alive, like it was begging for her mouth. But at the precipice, she hesitated. She knew that he'd gotten blowjobs from women far more skilled than her- from a trained assassin-slash-seductress, from a more experienced version of herself, and from a woman who could literally make her mouth vibrate. How could she possibly compare?
"I know I probably won't be any good." She blurted. "But-" Whatever else she would have said was silenced when her counterpart angled his shaft downwards, pressing the head to her mouth. Her lips tingled where his flesh made contact, but that paled to the electric current that raced along his shaft in anticipation.
"You're going to do great." Her older self assured her. "Harry's a simple creature. If you're sucking his cock, he'll love it." Encouraged by her words, and by Harry's rapt gaze, Wanda wrapped a hand around his shaft. Her fingers interlaced with her counterparts', and she felt him throb under their combined touch. His cockhead flared, somehow flushing deeper as if trying to entice her. Consider her enticed. She pressed her lips to his glans again, this time deliberately. Instantly she was met by a surge of desire from Harry. He restrained the rabid urge to thrust upwards into the warmth of her mouth.
Wanda, however, didn't even try to restrain the urge. All sense of hesitation and exploration forgotten, she took him as far as she could go, gagging herself in the process. Instead of overwhelming him in pleasure, his enjoyment was tempered- perhaps even ruined- by concern for her. "Slowly." Her counterpart chastised, using a hand to guide her back up his shaft. "You don't need to deepthroat him, just bob and suck." She gently pushed her down, and Wanda followed her instructions. This time, Harry lost himself in the pleasure, moaning low and deep.
It felt so good, so so good. She'd suck his cock every day, whenever he asked, if this was how it felt. Or maybe she'd have Skye do it for her while she laid back and enjoyed it. That was what alternate Wanda had done many a time. It took all her focus to follow those instructions- bob and suck. Ironically, she needed to tamp down on her connection to him in order to properly pleasure him- another mark in favor of involving other women. All she wanted to do was sink into what Harry was feeling, as she could tell her alternate self was, but she couldn't because if she did, she'd completely lose the plot. The more she thought about it, the more she realized that this other version of her was a genius.
"I'm close." Harry moaned unnecessarily. She'd already increased the speed of her bobbing. She wanted him to cum so badly, she could beg for it. Thankfully, she and her other self were on the same page.
"Cum in her sweet mouth." She crooned. "She wants it so bad. Give it to her." He came, and Wanda came with him. She tried to keep him in her mouth, but when his cum shot to the back of her throat, she couldn't help but cough, letting the next few pulses line her face. Finally, as his orgasm wound down, she found the wherewithal to return his cock to its proper place in her mouth, suckling the last few dribbles from him.
"That was incredible." Harry breathed.
"No, that was terrible." Wanda muttered, feeling disappointed in her performance. "I'll do much better next time."
"Well-" Harry blinked, realizing that there was now only one 'Wanda' in the room. "Wait."
Wanda quickly scoured her memories. "Oh. Its me." She had two complete sets of memories now. She was… both. She beamed. "It's me." Harry tugged her up and kissed her despite the mess her face was. She giggled, clearing the mess with her telekinesis. "I can give you much better right now."
Harry smiled apologetically. "As lovely as that sounds, we should get back first. I wasn't exaggerating about your father. We've done what we needed to do here."
"Not quite."
-----
Harry turned to the new- or not quite new- voice. There she was, Wanda again, but she looked… different. "Wanda." He said.
She shook her head. "It would be easier if you call me the Scarlet Witch."
He appraised her. There was something off about this woman, grief hung around her like a cloud, but there was more, something… darker. He summoned clothes for him and his Wanda, suspecting that this encounter would be quite different from the previous one. "I think I prefer Wanda, thanks."
"Who are you?" His Wanda asked.
"I'm you." She answered. "In a world without Harry Potter."
"Oh." Wanda breathed, her eyes scanning again. "What happened?"
"A lot of things. I lost my brother. I lost the man I loved. I lost my sons."
"You're the one I saw; in that vision the Mind Stone showed me. You-"
"I killed the man I love, and it meant nothing." Wanda's voice, enraged and grief stricken, cut through the room.
"I'd apologize, that my mistakes led you to make your own." The Scarlet Witch said. "But I'm afraid I have much more to atone for."
"Wanda." Harry breathed, moving to reach for her, before remembering himself. This was a woman who truly didn't know him, he was a stranger to her. There was no reason she'd find comfort in him. "What did you do?"
"I wanted my family back." She said. "I killed people, innocent people. Tried to kill my friends, hunted an innocent girl across the multiverse. And in the end, I killed myself." Harry swallowed, speechless. "How does it feel, to know that someone you love is capable of such evil?" She asked him.
He'd already known how that felt. But this, this actually made it easier for him. He'd seen Wanda struggle with her darkness. He'd seen her regret and her contrition, he'd seen her mistakes, and seen her try to be better. He was proud of her for that, for choosing the right path, even when it was hard, even when it might be easier to let herself go. And he remembered something Dumbledore had once said to him, so very long ago, in the aftermath of his battle with Tom Riddle in the Chamber of Secrets.
"Everyone is capable of good, and evil." Harry said. "It's our choices that make us who we are. Wanda- my Wanda-" He looked warmly at her. "Struggled, but she made her own choices, she didn't lose herself. Your choices don't reflect on hers." He wondered if he could say the same thing about his mother- a woman he had never truly known. Maybe, at least, it could help him separate the two versions of the woman in his mind.
"Perhaps so." The Scarlet Witch allowed.
"How are you here?" Wanda asked her, guarded. She was far more wary of the woman than Harry was.
"I died, but before I did, I'd scattered myself across the multiverse." The Scarlet Witch said. "Our universes are close together, and so I got caught up in… this."
"More importantly." Harry said. "Why are you here?"
"I'm here to help." The Scarlet Witch answered. "Consider this me making a choice. A small act of penance."
"How are you going to help?" Wanda pressed. "I don't want whatever powers you have."
"Certainly not." The Scarlet Witch scoffed. "You're too good for them. I doubt you'd like my memories, either. No. I'm here because I know your plan, Harry Potter." She leveled him with her eyes. "And as it stands, it won't work."
"What do you mean?"
"You'll never be able to get all the infinity stones, not even if you find Steve Rogers." She said. "The Reality Stone is beyond your reach."
"I see." He'd feared that possibility, so this didn't surprise him. "I take it you have an answer."
"Let me show you something, from the worst day of my life." The Scarlet Witch told him, and the world around them rolled over.
"Big day today. Your mother and I… are very proud of you both." The man said. He wasn't human. His body was metallic- red and silver, and in his forehead was the Mind Stone.
"Very proud. You know… a family is forever. We could never truly leave each other, even if we tried. You know that, right?" That was Wanda. They were doting over their children, tucking them into bed… saying goodbye.
The scene shifted, rolling forward. The two of them were staring out the window, watching as a wall of red static approached inexorably.
"Wanda, I know I can't stay like this. But before I go, I feel I must know. What am I?" The man asked.
"You, Vision… are the piece of the Mind Stone that lives in me. You are a body of wires and blood and bone that I created. You are my sadness and my hope. But mostly, you're my love."
The Scarlet Witch dispelled the memory, returning them to the bedroom. "Do you see now?" He saw the tracks of her tears, and again wanted to reach out to her, to comfort her. But it wasn't his place.
"The piece of the Mind Stone." Wanda whispered. "That lives in me?"
"You have more power than you know." The Scarlet Witch told her. "I created a reality for myself, no Darkhold needed. I recreated the Mind Stone from the fragment of its power that resided in me. So, consider Wanda." She pointedly glanced at Harry. "Who else do you know, that has been empowered by an infinity stone?"
His mind raced, putting the pieces together all at once. Wanda had been empowered by the Mind Stone, just as every wizard had been empowered by the Reality Stone. Just as Carol had been by the Space Stone. If this worked, they had almost everything they needed.
"Good luck, Harry Potter." The Scarlet Witch said. "I hope… you can give her the life I never got to have. She deserves it." She closed her eyes, and she was gone.