Over the noise and confusion rang the mocking laugh of the Black Star. Through the gas cloud they could see him retreating, shielding himself with the body of his bound and gagged prisoner. Three men who retreated before him carried two heavy suit cases between them.

Shots rang out, but none fell. Those of the police who had not been rendered unconscious by the gas bomb charged again. They saw the Black Star back into a little side corridor, saw him hesitate a moment by the wall, put his hand against it, and saw an opening appear.

Through this opening his men darted. He stepped into it himself, still using his prisoner as a shield. Then the opening closed.

“We’ve got him—got him!” the chief cried. “Our men are watching the top of that between-the-walls business he built, and we are watching the bottom. He can’t get out. He’ll give up or he’ll stay there and starve. And if he doesn’t give up mighty quick we’ll go in after him.”

Muggs grasped the chief by the arm and opened his mouth to speak, but the chief was quicker.

“I know, Muggs,” he said. “The scoundrel’s got Verbeck in there. But we’ll get ’em—and I don’t think he’ll hurt Verbeck.”

[CHAPTER XXXII—A NARROW ESCAPE]

When the Black Star had entered the aperture in the lodge hall, and the panel closed behind him, he flashed his electric torch around the interior of a space about five feet long and three wide.

“Notice our ingenuity, Mr. Verbeck,” he said. “Here we have constructed, as I remarked, a sort of dumb-waiter between the walls of the two buildings. It took considerable time, and great care was necessary, but the job will be profitable for all that. Every bit of material had to be smuggled into the lodge hall, but we did it without the stupid police suspecting anything was wrong.

“I am sorry that I cannot remove your mask and gag and discuss this bit of work with you, but you might shriek and call down our foes. Kindly give me your close attention now. You see this small cable running through the corner? I pull on it like this—similar to the old-fashioned elevators, you see. And down we go!”