He shook hands with them and hurried away to the captain's quarters, where he found that officer waiting for him with the papers.

"There's no answer," he said, as he handed them over. "When you've delivered the papers your work is done. Good luck."

Frank thrust the papers in his pocket after receiving full directions as to his route. The motorcycle was standing at the door. It was a powerful machine of the latest make and everything about it suggested strength and speed. He noticed that there was a saddle in the rear and a thought came to him.

"I see that this machine will carry double," he said. "Would you mind if I took a companion with me? The machine will carry two as swiftly as it will one. Then, too, if one of us were hurt or shot the other one could still go on with the message."

"An excellent idea," said the captain after pondering a moment. "Get him, but make haste."

Frank rushed back to his chums.

"Which one of you wants to go with me?" he asked breathlessly.

"I do," they yelled in chorus.

"Sorry," laughed Frank, "but there's only room for one. Toss a coin."

The luck favored Bart, much to Billy's disappointment. In a jiffy Frank and Bart had bidden Billy good-by, jumped to their places, and with a leap the powerful machine darted off.