her leave, and I don't see where she can be. I suppose she came to get orders, or something like that."
"You can bet that there's some other way to get out of here," the deputy told him. "You can bet that the Black Star doesn't let his gang hang around headquarters much. The way he did before was to have them show up one or two at a time, at certain intervals. He's probably issued all his orders and has quit for the day."
One of the other deputies startled them.
"Here's a little trap door—and a tunnel!" he said.
Sheriff Kowen hurried to the corner. The deputy had spoken the truth. There was a small trap door in the floor, and when it was opened the mouth of a narrow tunnel was disclosed. Sheriff Kowen issued his orders rapidly. Into the tunnel they went, flashing their electric torches, revolvers held ready for instant use.
They followed it a distance of a hundred feet—a dusty tunnel that twisted like a serpent. They came to another small door, finally managed to get it open—and stepped through the thick wall into the alley!
"So that is it!" the sheriff exclaimed. "That is how the woman got away from the house without our seeing her! Careful, now! We'll go back and see that everything is as we found it. I've got a little plan that will be a winner!"
Back they went through the tunnel. They closed the door, saw that the rugs were in place and that everything in the basement was as it should be, and went up the flight of steps.
