"There are only two objections I can see to the plan," said Chester.
"What are they?"
"Well, the first is, can you run the thing without spilling us out?"
"I am willing to take a chance if you are. Fritz explained the workings of the machine while we were aloft to-day. I am sure I can do it. What is the second reason?"
"The second reason is that it seems a shabby trick to play on Fritz, particularly after the way he has treated us."
"So it does," agreed Hal slowly, but, after a pause, he added: "However, I believe we had better do it. To me it looks like the survival of the fittest."
For a long time the boys debated this point, but the matter was finally settled when Hal said:
"Well, if we don't, we are likely to be stuck in Germany until the war is over; and there is no telling when that will be."
"As long as we are going to do it, then," returned Chester, "the sooner we start the better."
"Right," replied Hal. "Let's get busy."