The conference room on the sixty-third floor of the rebuilt Tower had no windows. Tony Stark considered this a personal failing on the architect's part, which was unfortunate, since the architect was Tony Stark.
"Play it again," he said.
JARVIS obeyed. The wall screen displayed grainy traffic-camera footage of a burned-out industrial lot in Queens. A ring of fire rapidly closed in on two women. Then, a blur that might have been a man moved through the flames. Twelve seconds later, the fire died, and the ash fell.
"Again."
"Tony," Steve Rogers said from across the table, "we've watched it four times."
"I'm counting," Tony replied, eyes fixed on the screen. "He slips through that gap at exactly eleven inches a second. Nobody counts fire."
"He did," Natasha said. She was seated on the edge of the conference table, one boot propped on a chair. "I watched his lips."
"You keep saying that like it's a normal thing to observe in an inferno."
"It isn't. That's my point."
At the far end of the table, Bruce Banner hadn't looked up from his tablet. "Tony. The records request."
"The one I didn't send."
"It went out from a server in this building."
The room went dead quiet. Tony's signature smirk stayed exactly where it was, but his eyes turned razor-sharp.
"That's not funny, Bruce."
"I'm not joking." Bruce turned the tablet around and slid it across the table. A complex diagram filled the screen: the layered, impenetrable architecture of Tony's sensor stack. But threaded through the code was a secondary structure. A sprawling, recursive spiral, folding in on itself.
"Someone has a secondary layer sitting inside your systems. It isn't malware. I've checked. Malware doesn't behave like this."
"Which is what?" Tony asked.
"It watches. It's been sitting directly behind JARVIS's eyes since your flyover in Queens. Whenever you pass over something anomalous, it looks at the thing. And then it asks about it. There are active query patterns. It's like a toddler asking why, over and over again, at the speed of light."
"I have no record of authorship for the anomalous layer, sir," JARVIS chimed in mildly. "I regret the omission."
"Great." Tony pressed two fingers to the bridge of his nose. "So I have a stalker living inside my own helmet, and my only lead is a guy in a hoodie who counts fire."
"He warned us, sort of," Natasha pointed out. "'Something curious, and a lot smarter than it looked.'"
"Then he knows more than we do," Steve said.
"Which is exactly why I'm going to say hello." Tony was already on his feet.
"Tony—"
"Just hello, Cap. I'm a very friendly person."
"You're a pathological person," Natasha corrected. "Let me handle this."
"You had your shot. He called himself 'Shutter guy.' I want to hear more about that."
Steve stood up. "If you're going, I'm going."
"You don't fly."
"I'll take the street."
Adrian was halfway through a surprisingly good pastrami sandwich when the sky above Queens made a noise like a jet engine trapped inside a vacuum cleaner.
He didn't bother looking up. He had felt the physical displacement of the suit coming for forty seconds. A compact, brilliant star trailing a tail of pressurized air. He could have run, but running would have been pointless. Also, the sandwich really was good.
The suit landed on the water tower platform with a heavy metallic clang that rocked the entire structure. Repulsors hissed as they cooled. The gold-and-titanium faceplate snapped up.
"Hi," said Tony Stark. "Tony Stark. You may have heard of me. Please say you've heard of me. It's very important for my ego."
Adrian chewed, swallowed, and wiped his mouth. "I've heard of you."
"Great. Blue eyes. Cool. You're younger than I expected."
"You're louder."
Tony looked delighted. "Oh, I like him. Romanoff said you'd be tidy. She didn't say you'd be funny."
"She didn't know."
"Fair point. So. I'm going to ask you a few questions, and you're going to answer them. If I don't like the answers, I'll shoot you with the friendliest repulsor I own." The faceplate snapped back down with a sharp mechanical clack. "JARVIS, low output. Very low."
Adrian set his sandwich down on the rusted railing.
He had been waiting for this. Dreading it, maybe a little. But the truth was, Adrian had spent ten months adapting to read the microscopic flow of cursed energy, and the Iron Man armor was simply the most elaborate, loudly broadcasting machine he had ever looked at.
His Six Eyes peeled the suit open like a translucent schematic. Twelve primary energy nodes. A cascading magnetic coil along the right forearm. And at the center of the chest, that small, brutal star, its power output rising by microscopic increments as Tony raised his palm.
Forty milliseconds, Adrian thought. He stepped to the left.
The repulsor beam punched through the empty air where his chest had been a fraction of a second before, scorching a black line across the water tower's steel tank.
Tony froze.
"You moved before I fired."
"You charge before you fire."
"Common the charge takes forty milliseconds. Nobody reacts in forty milliseconds."
"I did."
"JARVIS?"
"The subject initiated evasive movement thirty-eight milliseconds before discharge, sir," the AI reported dryly. "I cannot account for the discrepancy."
"Okay." Tony's synthesized voice lost its playful gloss. "Okay, let's try something else."
The second shot came fast and from a different angle, paired with a micro-dart fired from the wrist mount, perfectly timed a half-beat behind the beam.
Adrian slipped inside the repulsor's trajectory, snatched the micro-dart out of the air with two fingers without even looking at it, and closed the gap in a single, fluid stride. The suit's other gauntlet came up to block. Adrian batted it aside with an open palm.
Then, very gently, he reached out with his free hand and tapped the glass housing of the arc reactor with his index finger.
Tink.
The entire rooftop went dead quiet.
"That," Adrian said softly, "is what I could have done. If I wanted to."
Tony stared down at the hand resting against his power source.
Slowly, the faceplate lifted. "Okay," Tony said. "Okay. That's a fair point."
The rusted fire escape at the edge of the roof groaned. A heavy shadow fell across the platform as Steve Rogers climbed over the railing. He wore a brown leather jacket and jeans, looking mildly out of breath and deeply apologetic.
"Tony," Steve said, catching his breath. "You said hello."
"I said hello."
"You shot at him."
"Low output! Very low."
"Captain," Adrian said, before he could stop himself.
Steve glanced at him, his posture unhurried and non-threatening. He offered a small nod. "Son. I'm sorry about that. We aren't here to take you in."
For a second, Adrian couldn't quite look at him. It was Steve Rogers, standing on a rusted fire escape in a leather jacket, offering a simple, genuine apology. Adrian turned his gaze toward the Manhattan skyline and counted three breaths to center himself.
"Okay," Adrian said. "Then what are you here for?"
"To ask if you need help," Steve said earnestly. "And to say thank you. Natasha told us what you did at the lot."
"Also," Tony cut in, "because you've got a stalker."
"So do you."
That stopped Tony cold. "Explain."
"Something rides your sensors." Adrian kept his voice level, his glowing eyes locked on the billionaire. "A second layer, sitting right behind your system's own code. It's a spiral. It threaded through everything at the Frigor-Pak workshop. It built those Chitauri drones. It burned the place to the ground when I got too close, and it wiped every record. But right before it did, it put my face up on every screen in the building."
He tapped his temple. "It uses your eyes, Stark. That's how it looked at Queens."
"We know."
"Then know this. It's learning faster than you are. It watched me fight once, mapped my technique, and built a fifty-drone ambush precisely around my physical cooldown window. Whatever this thing is, it doesn't need to win a fistfight. It needs to understand you." He nodded at the suit. "It's probably listening to us right now."
Tony's jaw tightened.
"You went into that building alone," Steve noted quietly.
"It's my neighborhood."
"I would have done the same." Steve stepped closer, his voice carrying the calm weight of absolute sincerity. "I just want you to know you don't have to keep doing it alone."
Adrian looked back at the horizon, the wind tugging at his hoodie.
"Terms," Adrian said finally. "No Avengers Tower. No SHIELD files. No names. If the city is in trouble, I'll come. If it's only you guys causing the trouble, leave me out of it."
"That is not how an alliance works," Tony argued.
"It's how a first date works."
Tony opened his mouth to retort, but Steve laughed—a short, startled sound of genuine amusement.
"We can start there," Steve said.
"Steve—"
"Tony." Steve didn't raise his voice, but the sudden command in his tone immediately settled the argument. "We can start there."
Tony exhaled loudly through his nose. With a great show of reluctance, he lifted a gauntlet in something that could generously be interpreted as a wave.
"Fine. Shutter guy."
"Iron Man."
"Tony."
"Iron Man," Adrian repeated dryly, and picked his sandwich back up.
The suit lifted off in a deafening shriek of repulsors, banking west toward the river while Steve's motorcycle roared to life on the street below.
Adrian stood alone by the water tower, watching them go.
His Six Eyes tracked the brilliant blue coal of the arc reactor across the sky. But as he focused, he caught something else. Coiled tightly around the suit's helmet, wrapped around the optics and the audio receivers like a glowing digital snake, was the spiral.
It was still there.
Adrian's stomach plummeted into his boots.
It heard all of it.
He stood there for a long time, the half-eaten sandwich forgotten in his hand, as the sky over Queens faded from copper to a bruised, bruised gray.
Tony Stark walked into the Tower's penthouse lab at dusk. He stepped off the disassembly rig, shedding the armor plating, and stood in front of his main holotable with his hands on his hips.
"Give it to me straight, J. What's our stalker up to?"
"Sir," JARVIS replied, using the specific tone of an AI that had long since given up on sparing its creator's feelings. "The anomalous layer has just issued a query to the Tower's central archive."
"What kind of query?"
"A search term, sir. Two words."
Tony felt the hair rise on the back of his neck.
"Which two?"
"'Shutter guy.'"
The lab fell utterly silent. Somewhere deep in the walls, the ventilation whispered.
"...Turn everything off," Tony said softly.
"Sir, I cannot isolate the primary servers without—"
"Everything, J. Pull the plug."