"Wonder if the owner can be near?" mused the young inventor. "That dog won't let me get my machine, I am afraid."

Tom spoke to the animal again and again the dog growled and showed his teeth. He next made a move as if to leap into the house, and Tom quickly stepped back and banged shut the door.

"Well, if this isn't the worst yet!" cried the youth to himself. "Here, just at the time I want to be off, I must be held up by such a brute as that outside. Wonder how long he'll keep me a prisoner?"

Tom went to a window and peered out. No person had appeared and the lad rightly surmised that the bulldog had come to the cottage alone. The beast appeared to be hungry, and this gave Tom a sudden idea.

"Maybe if I feed him, he'll forget that I am around and give me a chance to get away," he reasoned. "Guess I had better try that dodge on him."

Tom looked around the cottage and at last found the remains of a chicken dinner the owner had left behind. He picked up some of the bones and called the bulldog. The animal came up rather suspiciously. Tom threw him one bone, which he proceeded to crunch up vigorously.

"He's hungry right enough," mused Tom. "I guess he'd like to sample my leg. But he's not going to do it--not if I can help it."

At the back of the cottage was a little shed, the door to which stood open. Tom threw a bone near to the door of this shed and then managed to throw another bone inside the place. The bulldog found the first bone and then disappeared after the second.

"Now is my time, I guess," the young inventor told himself, and watching his chance, he ran from the cottage toward his motor-cycle. He made no noise and quickly shoved the machine into the roadway. Just as he turned on the power the bulldog came out of the shed, barking furiously.

"You've missed it!" said Tom grimly as the machine started, and quickly the cottage and the bulldog were left behind. The road was rough for a short distance and he had to pay strict attention to what he was doing.