Save for the rasping of tools against steel and the heavy breathing of the man who worked, there was silence in the vault room and in the rest of the building. Presently there came a sharp click, the workman gasped his satisfaction and stood up. The big door was pulled open.

Both men hurried inside the vault. They began stuffing packages of bills into canvas bags which had been in the box with the robes.

"That's all!" one of them whispered to the other. "The boss said for us not to bother with securities or any of the small stuff. We'll go!"

"We'd better, or they'll be on us in another minute," the other man replied nervously. "When you opened that door you sent in an alarm."

"And it went to a protective agency where the man on night duty is one of us," the other replied, chuckling. "He'll have to give out the alarm, of course, but by the time he gives it out, we'll be far away. What time is it now?"

"Twelve thirty."

"Just right! Send the signal to the others. The lieutenant is standing by the window at the end of the hall."

A hiss escaped the man's lips, and was carried and echoed through the building. The men gathered in the corridor, the lieutenant made sure all of them were there, and then they descended into the basement, and passed from it to the one adjoining.

"Signal for the autos," the watchman was ordered. "Then make your own get-away. And be sure you remember all that you've been told. Obey orders!"

The watchman stepped into the dark alley, and flashed an electric torch five times. A chauffeur at the mouth of the alley counted the flashes, and honked his horn. A procession of four automobiles started through the alley.