"Who are you?" demanded Applebee.

"My name is Lambert," said the detective, dropping his disguise.

"I might have guessed it; but don't forget that I made this arrest."

"You shall have the credit of it." The light of two bull's-eye lamps was thrown upon the man's face. "By George! It's Dick Remington."

"Absent on business," observed Applebee, sarcastically. "The murder's out. What's that he's dropped?" Lambert picked it up. "A mask!"

It was the mask of a Chinaman's face; and moreover, Dick's outer garment was that of a Mongolian, resembling the garment of the wax figure in the office from which but a few minutes ago he had escaped.

"Look here, Mr. Lambert, look here, Applebee," said Dick, eagerly----

"Stop, Dick Remington," interrupted Lambert. "Don't you think you had better shut your mouth? We're bound to take you to the station, and charge you. When you're brought before the magistrate you can tell your story if you like. Take my advice."

"So far as my story is concerned I will," said Dick, "but in that house are the murderers of Samuel Boyd. For heaven's sake don't leave the place without arresting them!"

"If he gets us into the house," remarked Applebee, "we're done for."