the wall. One of the gangsters was awake. The boys listened. They heard a movement in the outer cave, a jangling of keys, and then a heavy footstep.
Joe thrust his arms behind his back and feigned slumber. He could hear some one entering their cave.
Suddenly a bright light flashed in his face. The man on guard had come to inspect the captives and he brought with him a flashlight. Joe kept his eyes closed and breathed heavily. He hoped desperately that the man would not inspect their handcuffs.
The fellow appeared satisfied and in a few moments went away. Through narrowed eyelids Joe could see his dark form as he reached the passage between the two caves. He saw the round white circle of light shine for a moment on a small rock shelf in the passageway and he saw the guard reach up and toss a bundle of keys on the shelf. Then the man went on his way, switching out the light.
Joe's heart beat faster.
This was luck for which he had not dared hope. He now knew where the keys were kept. Could he but reach them without arousing the guard their chances of escape were multiplied tenfold.
He waited until it seemed that hours had passed. None of the boys dared so much as
