Harvey and Mattison still stood on the stone step, looking into the
lantern. They could see neither door nor man. After a short wait,
evidently for scrutiny, the door closed. When it opened again, Mallory's
voice said, "Close that light," adding, "Is anything the matter, Mr.
West?"

"No," replied Harvey. "We're keeping an eye open. I see your men know
their business. Have you had any trouble?"

"Everything is quiet. Do you care to come in?"

Harvey responded by entering, with Mattison following. As they crossed the
waiting room, Mallory drew their attention to a shadow near a window.

"One of our boys," he said in a low tone. "I put out all the lights. It
makes it a good deal easier to watch."

Up in Mattison's office the detectives were lounging about, some dozing,
some conversing in low tones. The gas burned low, and the window shutters
were covered with the rugs from the President's office, to keep the light
from the street.

The two officials, after a glance about the room, returned to the hall.
Harvey tried the door of each office, then returned to Mattison and
Mallory. While they stood whispering,--for at night sound travels through
an empty building,--there came the sound of a window sliding in its sash,
apparently from the Treasurer's office.

Mallory paused to listen, then coolly turned and continued the