ing all your silly policemen over to the First National when you got the alarm, so they would not bother my men here. It was very thoughtful of you!"
The Black Star laughed, and put up the receiver. He laid the letter addressed to the chief in the middle of the table, and pasted little black stars around the room on the marble. He ran to a rear window and saw three automobiles passing through the alley. In them were his men, he knew, and also the gold coin taken from the supposedly impregnable vault of the National Trust.
The Black Star laughed again, went to the stairs, and began mounting them, flight by flight, stopping now and then to laugh at a bound and gagged watchman. Presently he reached the roof by means of a trap door. He closed the door again, and fastened it securely. Then he took an electric torch from his pocket, and flashed a signal toward the sky.
He removed his robe, rolled it up, put it beneath his arm. He picked up his heavy ulster from the roof, where he had left it before descending into the bank, and put it on.
Once more he pointed the electric torch upward and flashed a signal. Then he touched match to cigarette, walked to the edge of the building, and glanced over.
He heard the sirens of police automobiles in the distance. He saw the machines stop and policemen spring from them. He watched as they gained entrance to the building, saw a crowd gathering in the street below. The Black Star chuckled again, took a vapor bomb from the pocket of his ulster, and hurled it at the street. It struck, exploded, and a cloud of white, pungent vapor drifted across the pavement.
