"Get back in the corner and crouch down, McKenzie," said Hal, and did the same thing himself.

At that moment there was a crash in the adjoining room. Hal's revolver leaped out, as did McKenzie's, and both dashed into the room. McKenzie flashed the light across the floor, and there, just getting to her feet, was Gladys.

"Quick! You must fly!" she cried. "General Rentzel is on his way and will be here at any moment."

The fuse in the other room was burning fast, as Hal knew. The lad determined, in that instant, that he would not leave the house without getting the list for which he had come.

He pulled Gladys back into the room where the fuse was fast burning to the safe. McKenzie followed, and the three crouched down.

A moment and there was a muffled explosion, followed by a flash of fire. Smoke filled the room. With a cry to the others to stay where they were, Hal dashed to the safe. It was as he hoped. The door had been blown clear.

Quickly Hal explored the contents of the safe. Then he gave a cry of delight. His hand encountered what he felt sure was the book he sought. He ran across the room with it to where McKenzie held the flashlight and by its glow examined his prize.

It was the list he sought.

Hal hesitated one moment, and then he pressed the book into the hands of Gladys.

"Quick!" he said. "Out the window with you. Give this to Chester and tell him to get out of Berlin at once. Tell him he will be followed but that he must get through."