"We can check possible thefts with Rivers's clerk, when he gets here," McKenna said. "Now, suppose you show me these things you found, back at the rear ... Aarvo, you and the boys start taking pictures," he told the corporal, then he followed Rand back through the shop. He tested the temperature of the water in the ice-bowl with his finger. He looked at the ashtray, and bent over and sniffed at each of the two glasses. "I see one of them's been emptied out," he commented. "Want to bet it hasn't been wiped clean, too?" "Huh-unh." Rand smiled slightly. "Even the tiny tots wipe off the cookie-jar, after they've raided it," he said. A flash-bulb lit the front of the shop briefly. Corporal Kavaalen said something to the others. McKenna picked up the card Rand had found by the edges and looked at it. "What in hell's this all about, Jeff?" he asked. "Rivers made it out for one of his pistols. An English flintlock pocket-pistol; I can show you one almost like it, up front. He'd gotten it and three others, back in 1938, in trade for a Kentucky rifle. The numbers are reference-numbers; the letters are Rivers's private price-code. Those three at the end are, respectively, what he absolutely had to get for it, what he thought was a reasonable price, and the most he thought the traffic would stand. He sold it in 1942 for his middle price." There was another flash by the door, then Kavaalen called out: "Hey, Mick; we got two of the stiffs, now. All right if we pull out the bayonet for a close-up of his chest?" "Sure. Better chalkline it, first; you'll move things jerking that bayonet out." He turned back to Rand. "You think, then, that maybe some card in that file would have gotten somebody in trouble, and he had to croak Rivers to get it, and then burned the rest of the cards for a cover-up?" "That's the way it looks to me," Rand agreed. "Just because I can't think of any other possibility, though, doesn't mean that there aren't any others." "Hey! You think he might have been selling modern arms to criminals, without reporting the sale?" McKenna asked. "I wouldn't put it past him," Rand considered. "There was very little that I would put past that fellow. But I wouldn't think he'd be stupid enough to carry a record of such sales in his own file, though." McKenna rubbed the butt of his .38 reflectively; that seemed to be his substitute for head-scratching, as an aid to cerebration. "You said you were here yesterday, and bought a pistol," he began. "All right; I know about that collection of yours. But why were you back here bright and early this morning? You working on Rivers for somebody? If so, give."