Bill's horse reared high in the air, striking with its forward feet. The rider leaned forward and fired from beneath the creature's neck as it stood on its hind legs, but the movements of the animal prevented him from accuracy.

Merry's second shot struck the hind leg of Bill's horse, and the creature came down in such a manner that its rider was pitched off, striking upon his head and shoulders.

Frank did not fire again, for Bill lay in a heap on the ground. The horse struggled up, being caught by Merry. Frank looked to the beast's wound, fearing to find its leg broken. This, however, was not the case, although the bullet had made a rather ugly little wound.

In another moment Frank was in Bill's saddle, and away he went on the back of the chief's horse, leaving the stunned rascal where he had fallen.

"An exchange of horses," he half-laughed. "You may have my dead one in place of your wounded one. If you do not like the bargain, Captain Bill, blame yourself."

He was in no great fear of pursuit, but he longed to know just what friends had come to his rescue at[Pg 127] such an opportune moment. How was he to reach them?

When he felt that he was safe, he drew up Bill's splendid horse, dismounted and examined the bleeding wound. It was far less serious than he had feared, and he proceeded to dress it, tearing his handkerchief into strips to tie about the creature's leg.

Having attended to his horse, Merry remounted and sought to find a means of approaching the spot from which his unknown friends had fired into the valley at such an opportune moment.

He was thus employed when he came upon a most disreputable-looking old bummer, who had in his possession four horses. This man was startled by the appearance of Merriwell and acted very strangely.

Frank rode slowly forward, ready for whatever might take place. However, he was recognized by the man, who uttered a shout of astonishment.