The red patches blazed on his cheeks. “You are treating me like a child,” he said. There’s not a single S in that sentence, so I don’t see how he could have hissed it, but I swear that’s what he did. “That is not a wise thing to do.”

And his hand went into his pocket.

It stayed there while his eyes swung toward the door, which had just opened. “Ah,” I said, “just the man I’ve been waiting for. Ray, I’d like you to meet Tiglath Rasmoulian. Mr. Rasmoulian, this is Officer Raymond Kirschmann of the New York Police Department.”

I didn’t get the impression that this was what Rasmoulian had been hoping to hear. He took his hand out of his pocket but did not offer it to Ray. He nodded formally to Ray, then to me. “I will go now,” he said. “You will keep it in mind, what we discussed?”

“Definitely,” I said. “Have a good weekend. Oh, don’t forget your book.”

“My book?”

I turned around and grabbed a book off the shelf behind me. It was the Modern Library edition of Nostromo, by Joseph Conrad, with slight foxing and the binding shaky. I checked the flyleaf, where I’d priced it reasonably enough at $4.50. I picked up a pencil, casually added a two to the left of the 4, and smiled at him. “It’s twenty-four fifty,” I said, “but your discount brings it down to twenty dollars even. And of course there’s no sales tax, since you’re in the trade.”

He went into his pocket again, but it was the other pocket this time, and he came out with a money clip instead of a gun, which struck me as a vast improvement. He peeled off a twenty while I wrote out a receipt, carefully copying his name from his card. I took his money, slipped his receipt inside the book’s loose front cover, and slid the book into a paper bag. He took it, gave me a look, gave Ray a look, started to say something, changed his mind, and scuttled past Ray and out the door.

“Odd-lookin’ bird,” Ray said, reaching for the card. “‘Tiglath Rasmoulian.’ What kind of name is Tiglath?”