“I haven’t the least idea.”

“Well, then I tell you again that my advice to you is not to do it.”

“But I don’t know what you mean.”

“If you’ll think it over for two or three hours I’m sure you’ll find out,” declared George and he withdrew from the room.

George’s warning was still fresh in Fred’s mind when the boys no longer could be seen. He was still mystified by the strange warning. He was positive that he had not spoken to any of his friends concerning the project in his mind and therefore it was impossible that George could have heard any word of his plans.

Assured that his companions had departed, Fred soon afterward set forth on his solitary expedition. He had, however, not entered the road before he saw the automobile returning.

“What’s wrong?” he called as the car stopped in front of the long, winding driveway that led to the farmhouse, which was located back on the hillside.

“I went off without my tennis racquet,” explained George. “You have decided to come with us, haven’t you, Fred?

“No, I’m not going,” replied Fred.

“But you’re going somewhere,” said George. “What are you doing down here in the road if you’re not? I thought you had some very important matters which you had to attend to this afternoon?”