“Then you’ll do it,” eagerly demanded Billy. As for Harry, he was so entranced at the idea that he was capering about the room like an Indian.

“I think that it is almost certain that we will not,” teased Frank.

“Not what?” groaned Billy.

“Not be able to resist the temptation of going.”

At this point a maid entered the room with a telegram.

“This is for you,” she said, holding it out to Frank.

Frank tore it open and his face flushed angrily as he read its contents. He handed it to the others. The message was not signed, but even so the boys all guessed who it was from.

“You got away from us by a neat trick last night,” it read, “but puppies like you cannot balk us. Men are in this race, not boys, so keep your hands off it.”

“I suppose he means by that, as we are not contestants, we have no right to interfere with their attempts to steal the gyroscope attachment for themselves,” exclaimed Frank. “That’s a fine line of reasoning.”

“That telegram ought to decide us,” burst out Harry.