He slept for eleven hours.
Not the light meditative sleep of the recovery protocol — actual sleep, the deep unconscious kind that the body demanded when it had been run past its reserves and needed to rebuild from something closer to the foundation than normal rest addressed. He didn't dream. Or if he did, the dreams didn't leave marks. He went under and stayed under and when he surfaced it was because his body had decided it was finished rather than because anything external had called him back.
He lay still for a moment after waking.
Inventory.
Chakra: nineteen percent.
He had gone to bed at four percent. Eleven hours of deep sleep had added fifteen percent to the reservoir — a recovery rate significantly higher than the meditation sessions had been producing. Which made sense: the body's most efficient repair happened during deep unconsciousness, and his body had apparently been waiting for permission to do its best work.
Nineteen percent felt like standing up straight after days of being slightly hunched.
Physical condition: improved across all metrics. The legs that had been making their displeasure known during the walk to the elevator were quiet now. The deep tissue fatigue from the procedure had resolved to background. The system was rebuilding.
He sat up.
Outside the window New York was in full daylight — the specific brightness of late morning, the sun past its eastern angle and climbing toward noon. He had slept through the night and most of the morning. The city below moved with the compressed energy of midday, the streets visible from this height carrying their continuous river of motion.
He sat on the edge of the bed and looked at it.
Yesterday he had executed a cellular-level modification of an Infinity-compound framework under emergency conditions at twenty-nine percent chakra with a fifty-one percent projected success rate. He had rekeyed a thousand-year-old Uzumaki seal to his specific chakra signature. He had misdirected a beacon that an entity older than civilization had spent four years engineering a seventeen-person acquisition program to activate.
And then he had eaten ramen and gone to sleep.
This was, he reflected, a fairly representative summary of his life across two dimensions.
He stood up and went to the kitchen.
Tony was already there.
This was not a surprise — Tony, from everything Naruto had observed in two days, had a relationship with sleep that was more negotiated than most people's. He was at the kitchen counter with coffee and a tablet, reading something with the focused attention that meant it was interesting rather than obligatory. He was wearing different clothes from yesterday, which suggested he had at some point slept, but his eyes had the particular quality of someone running on less rest than their body preferred.
He looked up when Naruto came in.
"Nineteen percent," Tony said. Not a question — FRIDAY had presumably been monitoring and reporting.
"Nineteen," Naruto confirmed. He went to the refrigerator. "How long have you been up."
"Define up," Tony said.
"Conscious and functional."
"Since four AM." He looked at his coffee. "I may have a problem."
"You definitely have a problem," FRIDAY said from the ceiling. "I've been saying so for three years."
"FRIDAY," Tony said.
"Yes?"
"Continue not having opinions."
"That's not actually something I'm capable of," FRIDAY said. "I can continue not expressing them, but the capacity for evaluation is inherent to my—"
"FRIDAY."
"Continuing not expressing them," FRIDAY said.
Naruto found eggs and vegetables in the refrigerator and began the process of making food with the pragmatic efficiency of someone who had been cooking for themselves since childhood and had no particular investment in the result being impressive. He was hungry in the specific whole-body way that followed significant chakra expenditure — every cell registering a need for input, the biological accounting of a system that had spent down its reserves and was presenting the bill.
"The HYDRA operatives from yesterday," he said.
"Detained," Tony said. "Fury's people collected them this morning. The ones Thor assisted off the roof required medical attention but are stable." He paused. "Thor wanted me to tell you he used appropriate restraint."
"Define appropriate in Thor's context."
"Nobody died," Tony said. "For Thor, that's actually restrained."
"And the operative who transmitted the activation code."
"Also detained." Tony set down his tablet. "He's not talking. Which is fine because FRIDAY got more from the transmitter he was carrying than he would have told us anyway. The secondary crystal unit was a mobile setup — not a fixed facility. They had it in a vehicle six blocks from the tower."
"Mobile," Naruto said.
"Specifically designed to be. They anticipated losing the facility and they anticipated potentially losing the bank crystals too. The mobile unit was the backup to the backup." He paused. "It's been secured. Fury's people have it. Along with the tower crystals, that's the full known supply of activation-ready Infinity crystals."
"Known," Naruto said.
"Known," Tony confirmed, with the tone of someone who was aware of the limitation in that word. "We're operating on the assumption that those were the only two sets. We don't have evidence of others. But we also didn't have evidence of the mobile unit until it was used."
Naruto absorbed this.
The beacon had been activated and misdirected. The crystals were secured. The seal was rekeyed. By any measure of the past seventy-two hours these were successful outcomes.
But successful outcomes in a situation this layered didn't mean the situation was resolved. They meant a phase had ended and the next phase had begun.
"The entity," he said.
"Still on approach vector," Tony said. "Velocity unchanged since yesterday. The misdirected signal hasn't reached it yet — we estimated seven months for signal travel. Until it does, the entity is operating on the original Infinity Residue trail." He picked up his coffee. "Current trajectory still points generally toward this solar system. But generally is a large word at interstellar distances — the actual approach vector has enough variance that we can't confirm Earth as the specific destination versus, say, Jupiter or the sun."
"Does the distinction matter at the scale we're talking about," Naruto said.
"In terms of immediate threat? Probably not. In terms of what it's actually following versus what it's attracted to in general?" Tony paused. "Yes. If it's following the Uzumaki bloodline specifically—"
"It goes where I go," Naruto said.
"Yes." Tony looked at him steadily. "I want you to know that information doesn't change anything about this conversation or this arrangement. I'm noting it because you should have it."
"I already had it," Naruto said. "It's been part of my calculation since I understood what Mito's message was about." He moved the eggs in the pan. "Something vast following me personally is not a new experience. The scale is different. The principle is familiar."
Tony looked at him.
"You've had this before," he said.
"Multiple times." Naruto thought about Pain, about the Akatsuki's systematic pursuit of the Jinchuuriki. About Kaguya. About the various iterations of being the thing that dangerous things wanted. "Being the target is uncomfortable but operationally manageable once you accept that the alternative — hiding, dispersing, removing yourself from the situation — usually makes the overall problem worse."
"You could hide," Tony said. "Theoretically. The entity is looking for Infinity Residue signals and the Uzumaki bloodline. If we suppressed those signatures sufficiently—"
"And the entity redirects to the next strongest available target," Naruto said. "Which in a world saturated with Infinity Residue post-Snap is — what? Everything within range? How many people carry residual Infinity exposure from the Blip?"
Tony was quiet.
"Three billion people experienced the Blip directly," he said.
"Three billion people with trace Infinity exposure," Naruto said. "If I suppress my signature, the entity finds the next strongest signal in three billion options. Which is not a population I want to redirect an interstellar predator toward."
Tony set down his coffee.
"You worked that out before I raised the hiding option," he said.
"Yesterday," Naruto said. "During the recovery meditation."
"You were working out strategic implications during recovery meditation."
"I can multitask at shallow depths."
Tony looked at the ceiling in the specific way he sometimes looked at the ceiling — not seeking FRIDAY's input, just giving his thoughts a direction to go.
"Okay," he said. "So. You stay visible. You build the capacity for Mito's techniques. We use the fourteen months of communication lag to prepare." He brought his eyes back to level. "What does preparation look like, specifically."
Naruto plated the eggs and vegetables and sat at the counter across from Tony.
"Three tracks," he said. "First track: accessing and learning the deeper seal layers. I need to go back in — regularly, with increasing capacity — and read what Mito left. That's the technical foundation. Everything else depends on understanding those techniques fully before I need to use them."
"Timeline on that track."
"Unknown. The outer message required twenty-six percent chakra and significant precision. The deeper layers will require more. Each layer probably requires more than the last." He paused. "I'm estimating months before I have full access. Then additional time to develop the execution capacity."
"Second track," Tony said.
"This world," Naruto said. "I don't know it well enough. I've been operating on nine days of observation and Ryu's memory fragments. That's insufficient for the long-term operation we're describing." He looked at his plate. "The school. Midtown. Ryu wanted to go there. I'm going to go there. Not as cover — as actual attendance. This world has knowledge I don't have and some of it is directly relevant to the techniques I'm learning."
Tony looked at him.
"You're going to high school," Tony said.
"I'm going to high school," Naruto confirmed.
"You're a fifty-year-old former world leader."
"In a seventeen-year-old's body, in a world where the educational system contains information I need." He ate some of the eggs. "I've done more undignified things for operational reasons."
Tony was quiet for a moment. Then: "Third track."
"Physical and chakra training," Naruto said. "The procedure yesterday demonstrated that my current capacity is insufficient for what's coming. Nineteen percent today, recovering. Fifty-five percent would have been ideal for yesterday's procedure. What Mito's techniques will require is almost certainly higher than that." He paused. "I need to rebuild and then build past where I was in my previous life. Which means a training regimen that takes into account the specific capabilities and limitations of this body."
"Ryu's body," Tony said. "The spider-gene modifications."
"Yes. I've been treating the spider abilities as supplemental — useful tactically, but secondary to the chakra system. That was appropriate for the first nine days. It's not the right long-term approach." He paused. "The body has capabilities I haven't developed. The spider-sense integration with Sage perception is still incomplete. The webbing has properties I discovered by accident during the HYDRA operations that I haven't explored properly. And the physical baseline—"
"Is extraordinary," Tony said. "FRIDAY's scan data was unambiguous on that. Ryu's modified biology, with or without chakra, operates above any normal human metric."
"I need to understand it fully," Naruto said. "And then integrate it with the chakra system properly. Not two separate systems running in parallel. One integrated system."
Tony was quiet for a moment.
"That's a significant training program," he said.
"Yes," Naruto said. "Do you have a facility?"
Tony looked at him.
"I have seventeen facilities," Tony said. "Most of them are better equipped than anything you would have had access to in your previous world."
"Then we start there," Naruto said.
He finished eating.
Tony watched him for a moment with the expression that had been evolving since their first meeting — the one that was past recalibration now and had settled into something more stable. Assessment completed. Category established. The particular regard of someone who had decided they were looking at something real.
"The school application," Tony said. "I know people on the admissions board at Midtown. The waitlist—"
"I don't want the application expedited," Naruto said.
Tony stopped.
"Ryu was on the waitlist on his own merit," Naruto said. "I'll apply on his merit. If his application was strong enough to get him waitlisted, it's strong enough to get him admitted. I'm not going to start this by using a shortcut he didn't have access to."
Tony looked at him for a long moment.
"The admissions office opens at eight," FRIDAY said. "Their waitlist review is typically completed within two weeks of initial notification. Ryu's application was submitted six weeks ago and is currently ranked fourth on the waitlist. One spot has opened in the current term."
Naruto looked at the ceiling. "Thank you FRIDAY."
"I didn't expedite anything," FRIDAY said. "I simply have access to public administrative records."
"Of course," Naruto said.
Tony's expression had moved all the way to something that was unmistakably a smile — brief, small, but complete. He covered it quickly with the coffee cup.
"Peter's in the lab," he said. "He's been down there since six. Something about wanting to document the webbing interaction properties from the procedure before the memory degraded." He paused. "He also made breakfast for everyone in the building at seven AM and left it in the kitchen on the main workspace floor. Apparently this is a thing he does when he's processing."
"I'll go down," Naruto said.
He stood, rinsed the plate, and started for the door.
"Naruto," Tony said.
He turned.
Tony was looking at his tablet. Not at Naruto — at the tablet, in the way Tony sometimes delivered things he was going to say while looking at something else, the sideways approach to directness.
"The modification procedure yesterday," Tony said. "FRIDAY's post-analysis is complete. The deviation on the pointing array rotation was one point three degrees from target when it locked." He paused. "That's well within the acceptable range. The seal rekeying was complete with full structural integrity. The failsafe was stopped with zero activation of the contained component."
"I know the results," Naruto said.
"I know you know." Tony was quiet for a moment. "I'm saying — at twenty-nine percent, under emergency conditions, with Wanda's stabilization as the only additional support, against a framework designed by an entity that has been operating at interstellar scale for longer than our civilization has existed—" He paused. "The execution was exceptional."
Naruto stood in the doorway.
"Mito trusted the bloodline," he said. "Fifty years of becoming prepared without knowing what I was preparing for." He paused. "She gave me something. The least I could do was use it well."
He left.
The lab was three floors below the main workspace.
Naruto had been through it briefly during the initial facility operations but hadn't spent time in it. It was organized in the way Tony's spaces were organized — apparently chaotic from a distance, internally logical, every element positioned relative to every other element by someone who moved through it constantly and had built the organization around their own motion patterns.
Peter was at a workbench in the far corner.
He had a series of webbing samples laid out on a non-stick surface — strands of varying lengths and thicknesses, some from apparently different production conditions, each labeled in handwriting that was small and precise. He was examining one through a magnification device with the focused attention of someone who was genuinely interested in what they were looking at rather than going through procedural motions.
He looked up when Naruto came in.
"You slept," Peter said.
"Eleven hours," Naruto said.
"Good." Peter turned back to the sample. "I've been looking at the webbing interaction from the procedure. FRIDAY's sensors caught data I didn't expect." He gestured at the display beside him. "When Kurama's chakra engaged with the pointing array — the resonance effect. The crystal structure responded to the chakra frequency in a way that the models didn't predict."
"The chakra-harmonic property," Naruto said.
Peter looked at him. "You felt that from inside."
"Kurama described it in real time. The crystal structure responded to ancient chakra specifically. His chakra, and the Sage of Six Paths remnants in mine." He moved to stand beside Peter and look at the display. "What does the data show."
"The response wasn't passive resonance," Peter said. He pulled up a specific graph on the display — a waveform comparison, two overlaid lines. "Passive resonance means a structure vibrates sympathetically when the right frequency is applied externally. This was different. The crystal structure wasn't just resonating — it was responding. Actively. Like it recognized the frequency."
Naruto looked at the graph.
"The crystal structure has memory," he said.
Peter looked at him.
"Infinity energy that has organized itself into a crystal form," Naruto said. "Mito's message said the entity can act through Infinity Residue at a distance. If the crystal structure carries encoded information—"
"It's not just a catalyst," Peter said. His voice had the quality of someone following a chain of logic and not fully enjoying where it was going. "It's a medium. Like — like a letter. The entity didn't just send HYDRA instructions for how to build the beacon. It sent a physical medium encoded with specific properties. Properties that respond to specific chakra signatures."
"Specifically to Sage of Six Paths chakra," Naruto said.
"Which means it knows about that energy type," Peter said. "It knows about your chakra specifically."
"It's been watching the shinobi world for longer than the Uzumaki clan has existed," Naruto said. "According to Mito. It's had a long time to learn the signature."
Peter was quiet for a moment.
"It built a crystal that responds specifically to you," Peter said. "And put it inside a beacon designed to call it here." He paused. "It didn't just want the location of Earth. It wanted confirmation that you specifically were here."
Naruto looked at the webbing samples on the bench.
"The seal that Mito built," he said. "The techniques inside it. They're the only known method for binding something like the Consuming Attention permanently." He paused. "If it can confirm that those techniques are present — that the carrier of the seal is accessible—"
"It wants to either acquire you or remove you," Peter said. "Before you learn the techniques well enough to use them."
"Yes," Naruto said.
"Which means it's not just following a trail," Peter said. "It's running a clock. Same as us. It knows you're here and it knows what you're doing and it's trying to get here before you're ready."
The lab was quiet except for the ambient sound of equipment running and the city noise filtered through the building's exterior.
"Then we make sure I'm ready first," Naruto said.
He said it the same way he had said every version of this across fifty years — not with bravado, not with false certainty, but with the specific quality of someone who had decided and was moving forward from the decision.
Peter looked at him.
"I'm going to help," Peter said.
"I know."
"Not just — on the big things. All of it. The training. The school thing, if you're actually doing that." He paused. "Ryu would have been at Midtown. I would have known him. That's not something I can have. But I can—" He stopped, organized the thoug