Diana was in Rome when the Istanbul report came in.
She had arrived at the Ponte Sisto scene twenty hours after it happened, which was sixteen hours closer than she had gotten to the Athens scene. She was moving faster. He was still faster than her.
She stood on the bridge in the early morning with the wind coming off the Tiber and worked through what the marks told her.
Different from Athens. The Athens scene was the chain as a weapon — strike-based, compression-based, a fight that ended through sustained application of force. This one was the chain as an environment, based on the pattern of marks. He had put it on the ground. Used it to control space. That indicated he had adapted mid-fight — which meant whoever he had fought had presented a problem that his opening approach had not solved.
She photographed the bridge, including the strikes on the parapet where the exchange had been most intense, and did some rough physics of the impact depths in the stone. The force required was not human. It was barely metahuman by the upper estimates.
She called Bruce from the bridge.
"The body shows structural failure in the divine protection," he said before she could speak. "Italian authorities have a metapathologist on it. The blessing Athena gave Warkiller was partially degraded at a molecular level before death. Not external damage — something reached into the protection's structure and dismantled specific layers from within. The mechanism is unknown. No match in the database."
"So whatever he did in Athens, he did again here," she said. "And it worked against something significantly deeper than Demetrios's empowerment." She thought about this. Warkiller's divine protection was foundational — woven into his creation, not a surface blessing. To dismantle it from within required something that could reach into the architecture of the thing itself. She did not have a name for what that something was. "He can reach into embedded properties and take them apart. He is not working from the outside."
"Which means either extreme sophistication with whatever this is, or a very long time to practice it, or both," Bruce said.
She looked at the bridge. She looked at where the chain marks went on the way off — the same drag pattern, the same deliberate noise of it.
"He left the marks again," she said.
"He knows we're looking," Bruce said.
"He is not trying to hide," she said. "He is not trying to evade. He could be operating with far less visibility. He is choosing this level of visibility deliberately."
She thought about the way Demetrios had been set down. The drag marks on both bridges. The careful, specific targeting of divine connection. The zero collateral damage — every scene she had reviewed, no bystanders harmed, no property damage that was not directly part of the fight.
"He has a code," she said. "He is not just a killer. He has a specific target logic and a specific limit."
"Olympian-connected," Bruce said. "Every target so far has received something from the gods. Demetrios was empowered by them. Warkiller was created by them. The pattern will continue."
"Who is in Istanbul?" she said.
"Hero Cruz. Wielded the Achilles Vest — an Olympian artifact that grants divine protection to the wearer. Currently on a mission in Turkey, has been for three weeks."
She was already moving toward the airport.
* * ** * *
He arrived in Istanbul on a Thursday evening and found Hero Cruz on Friday afternoon.
He located him in Beyoğlu — Cruz was not being careful about concealment, which was either confidence or complacency. The Achilles Vest was the problem to solve. Not the man — Cruz was capable, trained, moved with the economy of someone who had been in serious situations. But the vest was an Olympian artifact with the same fundamental nature as an Olympian blessing. It had a moment of creation. It could be aged through that moment.
He chose a narrow side street away from the main tourist flow, where a confrontation would not immediately generate spectators. He stepped out of a doorway and the chain went to work.
Cruz reacted faster than expected — he got his guard up and moved sideways simultaneously, the vest's divine protection already routing the first chain strike's force away from his core. He was trained for exactly this kind of engagement. He kept moving, refused stable footing, used pillars and doorframes to limit the chain's sweep angles. He was thinking tactically every second, which was correct and also was not going to be enough.
He got a clean strike in against Korvos's left side — a well-placed body shot that would have cracked the ribs of anyone without divine durability behind them. Korvos felt it register and kept moving, because registration was not incapacity and he had absorbed worse during the Ponte Sisto engagement and still finished the work.
For two minutes Cruz managed the distance correctly. He was good at this — the vest was designed to be used by someone who kept moving, someone who understood that divine protection was not a reason to stand still and receive but a reason to fight smarter than the threat expected.
On the third minute Korvos changed the chain's character entirely. He stopped striking and started herding — subtle directional pressure, closing options, narrowing the usable width of the street until Cruz's next dodge became a back-step instead of a full repositioning. The back-step was slower. In that fraction of a second the chain wrapped once around Cruz's right arm at the forearm and pulled, and with the pull came Korvos's left hand landing on the vest's strap at the collarbone.
The vest had been designed to resist divine interference. It had not been designed to resist something pressing on its temporal architecture from inside, aging the protective enchantment backward through the specific moment when it had not yet been given its protection properties.
The vest failed three minutes and forty seconds into the engagement.
Cruz felt it go — there was a half-second where his expression changed, the specific look of a man who has been relying on something and can suddenly no longer feel it. He tried to step back and recalibrate. The chain took his left leg at the knee before he could reset his footing, dropped him hard to the stone, and when he went down Korvos was already on him — one knee across his chest, the chain looped twice around his throat, Cruz's hands finding the links and pulling and finding that pulling accomplished nothing. It took less than a minute.
He stood in the narrow lane and looked at what he had done and felt the same thing he had felt on the Athens waterfront and on the Ponte Sisto — not satisfaction, but accounting. The Achilles Vest was a gift from Olympus to a mortal who had never asked for anything. The same divine generosity that could have looked down into a room below a palace and said this child too and had instead looked the other way.
He left Istanbul on the evening ferry.
He did not leave chain marks this time.
He was paying attention to what Diana was paying attention to, and he wanted her to notice the difference.
* * *
Diana was in Istanbul fifteen hours behind him.
She walked the lane where Cruz had died and she stood in it and thought about what was different here from Rome and Athens.
No drag marks on the exit. She had looked for them twice — once on arrival, once after the police briefing — and the absence was real and deliberate. He knew she was reading them. He had given her two examples, established that she knew what they meant, and now he had withdrawn them to show her that the giving was a choice.
She stood in the lane with the bazaar noise reaching her from two streets over and she thought about what the absence of marks meant. He knew she was reading them. He had given her two, established the pattern, and now withdrawn them to demonstrate that the giving was a choice. That was not the behaviour of someone covering their tracks. That was someone managing what she found. Someone who understood that information was a resource and was deciding how much of it to give her.
He was not communicating with the investigation in the way a killer leaves traces. He was communicating with her. The distinction was significant.
"He knows what I'm looking for," she told Bruce when she called from the lane. "He is curating what I find. He wants me to know he can do this."
"What does that tell you?" Bruce said.
"That he is intelligent," she said. "And that he wants me to know that too."