He turned around with another card. “The dog belonged to somebody named Henderson who lives on Clybourn Avenue in the Toluca Lake district. He’s a dwarf who gets occasional work in films. The dog’s name was Frank. Frank disappeared on Decoration Day. Henderson reported his disappearance to the Pound Department, but his description was vague and unfortunately Frank had no license ― Henderson, it seems, is against bureaucracy and regimentation. When the dog’s body was picked up at your house, Laurel, in view of its lack of identification it was disposed of in the usual way. It was only afterward that Henderson identified the collar, which was returned to him.

“Keats has seen the collar, although Henderson refuses to part with it for sentimental reasons. Keats doubts, though, that anything can be learned from it. There’s no trace of the little silver box which was attached to the collar. The receipt Henderson signed at the Pound Department mentions it, but Henderson says he threw it away as not belonging to him.

“As for what the dog died of, an attendant at the Pound remembered the animal and he expressed the opinion that Frank had died of poisoning. Asked if it could have been arsenic poisoning, the man said, yes, it could have been arsenic poisoning. In the absence of an analysis of the remains, the opinion is worthless. All we can do is speculate that the dog was fed something with arsenic in it, which is interesting as speculation but meaningless as evidence. And that’s the story of the dead dog, Laurel. You can forget it.”

“I’ll help wherever I can,” said Laurel in a subdued voice. “And again, Ellery ― I’m sorry.”

“No need to be. My fault for not having kept you up to date.” Ellery put his arm around her, and she smiled faintly. “Oh, Mac,” he said. “There’s something personal I want to say to Laurel. Would you mind giving me a couple of minutes with her alone?”

“Seems to me,” grumbled the giant, rising, “as a bloodhound you’ve got a hell of a wolf strain in you, Queen.” His jaw protruded. “Lay off my mother, hear me? Or I’ll crack your clavicles for soup!”

“Oh, stop gibbering, Mac,” said Laurel quickly.

“Laur, do you want to be alone with this character?”

“Wait for me in the car.”

Mac almost tore the front door off its hinges.