"You may search me," replied Leggett. "What can be the object of all these doors?"
"Stand back!" breathed Old King Brady, and he allowed the iron door which was self-closing to swing almost to.
For out of one of the doors a man now came and that man was Dr. Garshaski.
Hastily closing the door behind him he walked on rapidly along the corridor, opened another door and disappeared.
Old King Brady carefully noted the door and was about to venture in, when the first door opened and two Chinamen emerged.
Both were in American dress. One pointed along the corridor in the direction taken by the Doctor. They halted at the door through which Garshaski vanished.
It was too far off to enable the watching detectives to see their faces plainly, the dim red lights making it additionally obscure.
The two men stood talking for a few seconds then one of them got out what seemed to be a bunch of keys and began fumbling with the lock. As their backs were now turned to the detectives it was impossible to make out just exactly what they were doing.
In a moment the door was opened and they disappeared inside.
Old King Brady was about to press forward, but now came other delays.