CHAPTER XIII
SOME MYSTERY
Frank gulped down his astonishment. Then he sat still without a rustle. He was afraid that Bob might snore, wake up talking, and had an idea to creep closer to his chum, wake him up softly, and warn him to remain perfectly quiet.
Before Frank could act, however, there came a sudden interruption to the conversation between the men below, Jem and Dan. There was a thundering knock at the door.
"It's the gov at last!" shouted Jem, jumping to his feet.
"No one else!" echoed Dan.
Jem opened the door and a man staggered in. His slouch hat, dripping wet, was pulled down over his face. He was completely enveloped in a great rain blanket. The hole in its center fitted about his neck and covered him nearly to the feet, even to his arms. These held something under
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