30,000 on the Hoof by Zane Grey — Read

One early fall afternoon Logan returned from down the canyon with a pale cast of countenance and fire in his grey eyes. He did not vouchsafe any explanation, and Lucinda thought she had better not question him.

She knew something unusual had happened, but without betraying any curiosity, she managed to observe things that sent the slow, icy constriction to her veins. There was blood on Logan's hands and a bullet-hole in his shirt! He left almost at once, carrying his rifle, aid climbed the ridge into the woods instead of returning down the canyon. As she knew it was impossible to stop him, she felt a little less concern about his going that way rather than in the open.