But as they drew near to the narrow passage, Frank found his worst fears confirmed.

He stopped the Horse.

“It’s just as I thought,” he muttered. “We’re in a trap.”

Fully a hundred hostile Comanches were blocking the entrance to the amphitheater, if such it could be called, with stones.

For the Steam Horse to pass over the barricade was utterly impossible.

They were hemmed in—trapped!

It was a thrilling realization.

For a moment all three stood looking at each other in blank amazement and indecision.

“Bejabers, it’s a foine thrick they have played on us this toime!” cried Barney.

“Golly! I specs dem Injuns knowed all de time we’d be suah fo’ to come in dis place,” exclaimed Pomp.