She had a hard climb, but her dynamo and motor were very powerful, and carried her up to the level ground.

There she got on Frank's trail again.

The plateau was a picturesque place, as it was covered with flowers, tumbled rocks, vine-clad trees, and dense shrubbery.

A plain track through it was seen.

"We'll reach him in a few moments!" muttered Jack.

He cast his glance ahead, and as the ground gently sloped down from there, he saw the outlaw.

And he also saw a wide chasm.

It stretched straight across the horse's path.

Frank James was caught in a sort of natural trap, for he had gone plunging in between two steep rocky walls.

He could not turn to the left or right, and ahead of his sweating horse there yawned the wide deep chasm.