The trail wasn't obvious at first.
Kaelen had to move along the dome's interior base for nearly seven minutes before he found the second mark, another small area of displaced soil pressed tight against the barrier's curve. He crouched over it the way he'd crouched over the first, forearms on his knees, saying nothing.
"Another one," Lira said behind him.
"Yes."
"Same depth as the first?"
He pressed two fingers into the edge of the disturbance, looked at the gap between the soil and the barrier's base. "Similar. Maybe slightly less."
"Less meaning?" Jay said.
"I don't know yet."
Jay crouched beside him, uninvited, and looked at it with the kind of focused expression she mostly reserved for things that were about to become someone else's problem. "It doesn't look like digging," she said. "Digging displaces in a direction. This is more like pressure from below and then nothing."
"You know about digging?" Lira asked.
"I know about a lot of things."
"Name three."
"Digging." Jay held up a finger. "The exact number of times you've told me not to say something this week."
"Don't."
"Twenty-two."
Lira exhaled through her nose.
Penelope stood a step back from the group, watching the soil rather than the conversation. Something in her posture had gone still in the particular way Kaelen had started to recognize, the way she went still when she was accounting for something privately, running calculations she didn't share yet.
"The rams were clustering near the northern edge," he said, standing. He looked south along the dome's curve. "This is the second point. Both on the southern half."
"So whatever it is lives on the south side," Jay said.
"Or moves along it."
"It could be worse." Lira said.
"Considerably," Kaelen said.
Penelope walked forward until she was level with him, her eyes tracing the same line he'd been following. "There are three more sections along this stretch I haven't had checked," she said. "I asked the guards to sweep last week but they only covered the areas nearest the enclosure."
"Did they find anything?"
"They said No."
Kaelen looked at her. "Did you believe them?"
Penelope paused.
"I believed that they looked where they said they looked." She continues.
"That's not the same answer," Lira said quietly.
"No," Penelope said. "It isn't."
"How long have you managed the farmland?" Jay couldn't help her curiosity.
"Since i was sixteen." Penelope said briefly.
Mel, who had been standing at the edge of their group with the particular stillness of someone conserving something, turned slightly. "The guards assigned to this section are the same ones who've been here the longest," she said. Her voice was neutral and informative, the way someone reads a number off a page. "They're familiar with how things look when they're right. Something that's only slightly wrong might not register."
"You could have sent them the detail of what to look for," Lira said.
"I could," Penelope said simply.
"And?"
"They work for my family's estate. Not for me specifically." She looked at Lira with something patient and unflinching in it. "There are things I don't tell the guards that are attached to the estate."
The silence after that had a shape to it.
Lira absorbed it. Let it go.
Jay opened her mouth.
"Don't," Lira said.
"I hadn't decided yet."
"You'd decided."
Jay closed her mouth. Then: "I just think it's worth noting that the woman managing the entire farmland since she was sixteen can't fully trust the guards assigned to the farmland, and that nobody here is going to say that out loud."
Penelope looked at her. Something flickered, brief and genuine, before her composure settled back. "You're observant."
"She really is," Lira said, in the tone of someone confirming something complicated.
"You don't have to sound so conflicted about it," Jay said.
"I'm not conflicted."
"You're very conflicted."
...
They moved further along the dome's southern curve.
Kaelen stayed at the front, his pace unhurried. He was still listening to the space more than examining it, the way a room tells you where people have been by what they've moved.
"When did the rams first start acting wrong," he said.
"A week ago," Penelope said. "Maybe slightly more. The start of it was gradual enough that I didn't think much of it. They were just a little restless. I thought it might be the light cycle. The dome's internal cycle has been slightly off since last month and I haven't corrected it yet." She paused. "I should have corrected it."
"When did it go from restless to what we saw today?"
"Four days ago. They stopped sleeping where they normally sleep. Started congregating at the far edge of the enclosure every evening."
"Every evening," Kaelen repeated.
"Yes."
"Not during the day."
She went still again. "No. I hadn't... no."
He glanced back at her. "Something that moves during the day and settles at night. Or the other way. Either way it's on a pattern." He turned back to the dome's base.
"It's not random."
Lira looked at Jay. Jay looked at Lira.
"That's more organized than a scavenger rat," Lira said.
"Significantly," Kaelen said.
"So what is it?" Jay asked.
"I don't know."
"Best guess?"
"I don't bet my hypothesis on mere guess."
Jay made a sound. "You absolutely guess. You just call it something else."
Kaelen was quiet for a moment. "Something small enough to have entered through the barrier's lowest tolerance point. Something that's been here long enough to establish movement habits. Something that the rams can sense but haven't physically encountered, or they'd have scattered completely rather than clustering."
"That's a guess," Jay said.
"That's an assessment."
"The difference is very small."
"The difference," Kaelen said, "is that a guess is directional. An assessment is just what the information points to."
"And what does the information point to?" Penelope asked. There was nothing playful in it now. She was asking directly because she actually wanted the answer.
Kaelen stopped walking.
The third displacement was right in front of him. Slightly larger than the previous two. The soil here was darker, compressed in a pattern that spread outward from a single narrow point at the barrier's base. Around it, barely visible in the dome's distributed light, the surrounding earth had a faint, almost imperceptible sheen.
He crouched.
"Lira," he said.
She came forward, crouched beside him, and looked. Her expression shifted.
"That's residue," she said.
"From aether output or from the thing itself?"
"I can't tell without touching it and I'd rather not touch it."
"Don't touch it," Kaelen said.
"I wasn't going to."
"You had the look."
"I did not have the look."
"What look?" Jay asked.
"The look she gets before she does something that she'll describe as necessary afterward."
Lira turned to face him with an expression of measured offense. "I have never—"
"The underground tunnel outside Derath," Kaelen said.
She closed her mouth.
"That was necessary," she said finally.
"I know. I know. It was necessary."
Penelope was looking at the sheen on the soil. Her eyes moved to the barrier's base, then along the visible stretch of it in both directions. Something was working behind her expression, something that had been working since the first displacement site and was now arriving somewhere.
"There's a fourth site," she said.
"How do you know?" Lira asked.
"Because I know where the rams were sleeping before they stopped." She straightened. Her voice was even but the pace of it had changed, just slightly. "There's a stretch of enclosure where they used to settle. The southeast corner. They stopped going there before anywhere else." She looked at Kaelen. "I thought it was behavioral. They do that sometimes, shift habits. I didn't connect it."
"So the southeast corner is the original point. The one before any of this." He stood, looked south and east along the dome's curve.
He started walking.
...
The southeast corner of the dome was where the crops thinned. The trees at the dome's edge were older here, their roots thicker, and the gap between the last planted row and the barrier itself was wider. It was more open and less maintained.
Penelope was quiet as they crossed into it.
Kaelen reached the barrier and looked down.
The displacement here was not subtle.
It was a narrow channel, barely three-meters across at the widest point, running from the barrier's base into the soil at a shallow angle. . The sheen Lira had identified at the third site was heavier here, more visible, coating the inner edge of the channel in a faint film that caught the dome's light and gave it back slightly different.
Nobody said anything for a moment.
"That's not a new entry point," Lira said.
"No," Jay agreed.
"How long?" Kaelen directed at Jay.
She looked at the compaction of the channel walls, the way the surrounding soil had settled into the disruption like it had accepted it. "Long enough that the soil has normalized around it. Weeks, maybe longer."
Jay looked at Penelope. "This didn't start a week ago."
She was very still.
"The restlessness you noticed a week ago was when it escalated," Kaelen said. "Whatever this is, it's been here considerably longer. But subtly enough not to be noticed."
"What changed?" Lira asked.
"I don't know."
"Best—"
"I don't know, Jay."
She pressed her lips together.
Mel moved to the channel's edge and crouched without touching anything. She looked at it for a long time. She looked up at Penelope.
Penelope met her eyes.
"This can't be the only entry," Mel said.
Penelope said nothing.
"I'd like to sweep the perimeter."
"Go."
Mel moved east along the dome's base at a pace that made her seem to have teleported instantly.
Jay was surprised by the instant burst. "She moves like that all the time?"
"Yes," Penelope said.
"Is it an ability?"
Penelope looked at where Mel had gone. "No, it's just Mel."
...
They waited.
Jay sat on the raised edge of a crop border and looked at the channel from a comfortable distance. Lira stood with her arms crossed, not because she was cold, the dome kept a specific temperature, but because she was thinking. Kaelen stayed near the channel, not watching it exactly, but aware of it.
Penelope stood a few meters off, hands at her sides.
"Frustrated?" Kaelen said.
"I'm not."
"You're frustrated that it was here this long and you missed it."
Penelope paused before she continued, "I'm the one who manages this farmland."
"Yes."
"I notice things before they show in the leaves. That was my exact language."
"It was."
She looked at the channel. "I missed this."
"It's a three-meter opening at the base of a barrier that spans the full circumference of a dome. Along a stretch you'd have no particular reason to examine closely. In a section that backs up against old-growth trees." Kaelen didn't make it gentle. He just made it accurate. "Missing it doesn't mean you weren't paying attention."
She was quiet.
"It means whatever is using that channel knew where to enter," he said.
That landed differently. He could see it.
"Intentional," she said.
"Possibly."
Lira looked up. "You think it chose that spot specifically."
"I think the oldest trees provide the most natural cover. I think the southeast corner is the section of the dome with the least regular foot traffic. Something that's been using the same channel for weeks without being found was either extremely lucky or extremely aware of this space." He paused. "Neither of those options is more comfortable than the other."
Lira and Jay exchanged a look.
"So what do we do," Jay said.
Before he could answer, Mel returned from the east end of the dome's curve. She appeared instantly right behind Jay, startling her.
"Two additional sites," she said. "Both on the eastern side, both older than the three you found."
"Same entry profile?" Kaelen asked.
"Similar orientation. Different angle." She looked at Penelope. "They're not active."
Penelope exhaled once. Then she looked at the dome's interior, the crop rows, the distributed light, the enclosure in the middle distance where the rams were still clustering at the northern edge.
The light cycle had shifted. Not dark yet, but heading there. The dome's internal glow had softened by a degree that Kaelen had started to notice.
He looked at it and looked at the group.
"We don't know what it is," he said. "We don't know how big it is once it's fully inside. We don't know if it's one or multiple. We don't know if it's territorial or reactive." He looked at the enclosure. "We know the rams haven't been physically harmed. We know the points have been consistent. We know it has a pattern and the pattern is tied to the light cycle." He paused. "Fighting something you can't see, can't identify, and can't predict in an enclosed space, is not a good decision."
Lira nodded once, without hesitation.
Jay took a breath. Then she nodded too.
Kaelen looked at Penelope. "Have your guards keep the rams away from the southern and eastern sections tonight. Southeastern corner especially. Don't send anyone down here to investigate after dark."
Penelope held his gaze. "And tomorrow?"
"Tomorrow we'll be back," he said. "We'll deal with it then." He looked at the dome around them, at the crops and the old trees.
"Even with Mel, I'd advised we don't take rash actions today."
Penelope was quiet for a moment. Then she nodded.
Mel's eyes moved to Kaelen. Held there for a fraction of a second. Then she looked away.
...
They made their way back toward the dome's entrance in the slow shifting of the interior light. Jay drifted beside Lira, close enough that her voice wouldn't carry.
"I was going to say something earlier," Jay said.
"I know."
"The thing about the guards."
"I know."
"I wasn't going to be rude about it."
Lira looked at her sideways. "You were going to be accurate about it. Which sometimes lands worse."
Jay thought about that.
"That's probably fair," she said.
Penelope walked ahead with Mel a step behind her, their positions carrying the ease of people who had covered this particular distance together many times in many different circumstances. Neither of them spoke.
Kaelen walked beside Penelope for a few paces without meaning to end up there.
She glanced at him briefly.
"You'll really come back," she said. "After all—"
"Yes," he said.
"Why?" Penelope asked with genuine curiosity.
"You need the help obviously, and your pay is tempting." He said simply.
She looked ahead before bursting out in laughter.
Kaelen noticed how she relaxed subtly through her previously subtle tense demeanor, but he said nothing.
They kept walking.