"What a magnificent black horse," commented Jack.
"That's Siroc," informed the sheriff, "Jesse's horse."
"We'll overhaul them though."
"Let her fly if you wish to succeed."
"Are you sure they were the James Boys?"
"Certain. I did not get very near them, but noticed that one wore a heavy beard and the other a mustache. They had on riding boots, with the legs of their pants tucked in the tops, flannel shirts and soft felt hats, while around their waists were buckled cartridge belts into which were thrust a knife and brace of revolvers a piece."
"Does that description tally with the general appearance of the James Boys?" asked Jack.
"Yes. I am sure it was them."
The young inventor put on full voltage.
It caused the motor to fairly buzz, and the Terror shot ahead along the road with the velocity of an express train.