They had no opportunity to raise their weapons. Birdie Crull dropped his gun, and it slipped into the sloping opening that led to Windsor’s house. The other two men let their rifles fall.

* * *

A taunting, uncanny laugh came from the figure in black. Its mirthless tones quivered from the walls of the eerie cavern. It seemed to be the laugh of doom.

“So three of you came back,” mocked the weird, whispered voice of The Shadow. “I expected you. Now you are here — to answer for your crimes.

“Your crime is murder, Birdie Crull. Double murder. You killed Frank Jarnow. You killed Detective Harvey Griffith. I can prove your crimes.

“As for you, Blair Windsor, your position is obvious. You have lived here, supplied with money by Isaac Coffran, to mask this counterfeiting scheme.

“But the old man expected more of you. Your brother, Henry Windsor, has half a million dollars — which is willed to you.

“You agreed to give half of that sum to Isaac Coffran. It was to be obtained through the murder of Henry Windsor.”

“He made me sign the paper,” blurted Blair. “I didn’t want to agree to Henry’s death — but there was no way out!”

“Ah!” The Shadow seemed to chuckle. “So you signed something. I am glad to learn that fact. It gives me information. I know just how Frank Jarnow figured.