"Well, nothing particularly new," purred the detective, rubbing his hands together.

"Nothing new, and nothing true, and no matter," said Calton, quoting Emerson. "And what have you come to see me about?"

"The Hansom Cab Murder," replied the other quietly.

"The deuce!" cried Calton, startled out of his professional dignity. "And have you found out who did it?"

"No!" answered Kilsip, rather dismally; "but I have an idea."

"So had Gorby," retorted Calton, dryly, "an idea that ended in smoke. Have you any practical proofs?"

"Not yet."

"That means you are going to get some?"

"If possible."

"Much virtue in 'if,'" quoted Calton, picking up a pencil, and scribbling idly on his blotting paper. "And to whom does your suspicion point?"