He drove at top speed, while the friendly farmer and his workmen clung to the sides of the car and looked rather scared at the rate they were going.
"There's the tree," exclaimed Jack, as they came in sight of it, "and there's the gap in the fence."
"And where's the bull?" asked Tom.
"And where's the professor?" added Dick.
Not a trace of the man of science or of the ferocious animal was to be seen.
"Are you sure you boys didn't dream all this?" asked the red-faced farmer suspiciously.
"There ain't even a cow in sight in the pasture lot," said one of the men.
"I reckon this is some sort of a fool joke," added another.
"It isn't. Indeed, it isn't," protested Jack.
"The professor is some place around," said Tom.