"I didn't notice any place where she left the trail," interposed Cowboy Jack. "But I reckon Black Bear can find where she went. You have to hand it to those Injuns. They can see trailmarks that a white man wouldn't notice. And going to college didn't spoil Black Bear for a trail-hunter."

"He is quite a wonderful young man," Daddy Bunker said.

But Russ was only thinking about his sister. He wondered where she could have gone and what had happened to her. Pinky's coming back to the ranch alone made Russ believe that something very terrible had happened to his sister.

He urged his pinto pony on after the ranchman and daddy, however, and they all entered the ravine. It was a very wild place—just the sort of place, Russ thought, where savage Indians might have lain in wait for unfortunate white people. He was very glad that Black Bear's people were quite tame. At least, they could not be accused of having run away with Rose.

In a few minutes Cowboy Jack had led them up through the ravine and out upon what he called a mesa. There were patches of woods, plenty of grass that was not much frost-bitten, and a big spring near which a number of ponies were picketed. There was a traveling kitchen, such as the Army used in the World War. Men in white caps and jackets were very busy about the kitchen helping the moving picture company to hot food.

And the actors and Indians were all squatting very pleasantly side by side eating and talking. The Indians wore their war-paint, but they had drawn on their shirts or else had blankets around their shoulders. Russ saw Black Bear almost at once. He stood talking with some of the white men—notably with the one who was the commander of the soldiers, the man with the plume in his hat.

But it seemed that a little man sitting on a campchair off to one side and talking to a man who had a lot of papers in his hands was the most important person in view. It was to this man that Cowboy Jack led the way.

"That is Mr. Habback, the director," Russ heard the ranchman tell daddy. "We must get him to let us have Black Bear, or somebody."

The next moment he hailed the moving picture director.

"Can you spare some of your Injuns for an hour?" asked Cowboy Jack. "There's a little girl lost, and I reckon an Injun can find her trail better than any of my cholos or punchers. How about Black Bear?"