WHEN we reached the laboratory on our return, the inspector's man Riley was there, waiting impatiently for Kennedy.
"What luck?" asked Kennedy.
"I've got a list of purchasers of that kind of revolver," he said. "We have been to every sporting-goods and arms-store in the city which bought them from the factory, and I could lay my hands on pretty nearly every one of those weapons in twenty-four hours—provided, of course, they haven't been secreted or destroyed."
"Pretty nearly all isn't good enough," said Kennedy. "It will have to be all, unless—"
"That name is in the list," whispered Riley hoarsely.
"Oh, then it's all right," answered Kennedy, brightening up. "Riley, I will say that you're a wonder at using the organisation in ferreting out such things. There's just one more thing I wa
