Once more they were on the way, and shortly afterward they left the grim and rocky defile for a more fertile region, where there was grass for the animals. But they were still down between a range of high hills which towered on either side.

The trail twisted and turned, this way and that, winding back and forth. But ever there was to be seen, here and there, signs that the herd of cattle had been driven this way. Faint the signs were, at times, and at last they disappeared altogether.

"Where have they gone?" asked Nort.

"Looks like they dropped down a hole, but there isn't any hole here," said Yellin' Kid.

"Oh, we'll pick the trail up later on," suggested Bud.

But even as they started off once more Bud, who had just consulted a compass he carried, uttered a cry of amazement.

"What's the matter?" asked Slim.

"We're going the wrong way," declared Bud. "We're heading north instead of south. We're all turned around! Something's wrong!"

CHAPTER XX

A SURPRISE