There was no crash of vapor bombs, no cloud of pungent gas, no clash with desperate and determined criminals who fought on behalf of their leader and master!

There was nothing but silence—a silence broken only by the deep breathing of the sheriff and his deputies, who had sprawled into that hall expecting to meet with instant battle, and to whom the unexplained silence was more trying than combat.

Again Sheriff Kowen gave a signal, and one of the men opened the door at the end of the hall. They entered an ordinary living room that was adorned with cheap furniture; it might have been the living room of the home of a family in moderate circumstances.

They passed on to a small dining room, investigating an ordinary bedchamber. Sheriff Kowen began thinking that he had made a serious mistake.

"That woman came in here—and where is she now?" the sheriff said. "Search the rest of the house—go into the basement—don't leave a corner untouched. We're in here now, and we might as well do our work. That woman is here some place, remember that. We saw her come in, and she hasn't left."

They searched the kitchen, another small bedroom, and found nothing, neither a trace of Mamie Blanchard nor anything that would indicate that the cottage was a den of thieves. They located a trap door, and opened it, and saw a flight of steps running down into a dark basement.

"Careful!" Kowen warned his men. "They're probably down there waiting for us! We'll not all run into the trap!"

He delegated one man to remain above. He flashed his electric torch, but could see nothing except the flight of steps and the landing at the bottom. With some of the others close behind him, with his electric torch in one hand and his revolver in the other, Sheriff Kowen started to descend the steps.

Each instant they expected to hear the sound of a shot, or the explosion of a vapor bomb, or to encounter one of the traps rumor said the Black Star always had in his headquarters. Step by step they descended, but nothing happened.

They reached the landing, peered around the corner of a concrete projection. Sheriff Kowen gasped.