The young inventor saw his peril and knew that he must act quickly.

He drew his revolver and cried:

“Stand back, every one of you! I’ll kill the first man in my path.”

But the greasers were upon him and the pistol was knocked from his grasp.

Only one thing favored Frank at that moment.

The greasers were all light men, and they had not reached Frank until he was within ten yards of the Steam Man.

Barney and Pomp in the cage saw the situation at a glance.

They realized the deadly peril and were quick to make action.

Barney seized a club and rushed from the cage.

It was but a couple of leaps he needed to take to bring him to Frank’s side.