“I see you collect mirrors,” Eph said.

“Certain kinds. I find older glass to be most revealing.”

“Are you now ready to tell us what is going on?”

The old man dipped his head gently to one side. “Doctor, this isn’t something one simply tells. It is something that must be revealed.” He moved past Eph to the door through which they had entered. “Please—come with.”

Eph followed him back down the stairs, Nora behind him. They passed the first-floor pawnshop, continuing through another locked door to another curling flight leading down. The old man descended, one angled step at a time, his gnarled hand sliding down the cool iron rail, his voice filling the narrow passageway. “I consider myself a repository of ancient knowledge, of persons dead and books long forgotten. Knowledge accumulated over a life of study.”

Nora said, “When you stopped us outside the morgue, you said a number of things. You indicated that you knew the dead from the airplane were not decomposing normally.”

“Correct.”

“Based upon?”

“My experience.”

Nora was confused. “Experience with other aircraft-related incidents?”

“The fact that they were on an airplane is completely incidental. I have seen this phenomenon before, indeed. In Budapest, in Basra. In Prague and not ten kilometers outside Paris. I have seen it in a tiny fishing village on the banks of the Yellow River. I have seen it at a seven-thousand-feet elevation in the Altai Mountains of Mongolia. And yes, I have seen it on this continent as well. Seen its traces. Usually dismissed as a fluke, or explained away as rabies or schizophrenia, insanity, or, most recently, an occasion of serial murder—”

“Hold on, hold on. You yourself have seen corpses slow to decompose?”

“It is the first stage, yes.”

Eph said, “The first stage.”

The landing curled to an end at a locked door. Setrakian produced a key, separate from the rest, hanging from a chain around his neck. The old man’s crooked fingers worked the key into two padlocks, one large, one small. The door opened inward, hot lights coming on automatically, and they followed him inside the humming basement room, bright and deep.

The first thing to catch Eph’s eye was a wall of battle armor, ranging from full knight’s wear to chain mail to Japanese samurai torso and neck plates, and cruder gear made of woven leather for protecting the neck, chest, and groin. Weapons also: mounted swords and knives, their blades fashioned of bright, cold steel. More modern-looking devices were arranged on an old, low table, their battery packs in chargers. He recognized night-vision goggles and modified nail guns. And more mirrors, mostly pocket-size, arranged so that he could see himself staring in bewilderment at this gallery of…of what?

“The shop”—the old man gestured to the floor above them—“gave me a fair living, but I did not come to this line of business because of an affinity for transistor radios and heirloom jewelry.”