Chapter 7 ACROSS the rustic bridge, and once behind the sycamores at the lower end of the cow pasture, Guy Evans let his horse out into a rapid gallop. A few minutes later he overtook a horseman who was moving at a slow walk farther up the canyon. At the sound of the pounding hoof-beats behind him, the latter turned in his saddle, reined about and stopped. The boy rode up and drew in his blowing mount beside the other. "Hello, Allen!" he said. The man nodded. "What's eatin' you?" he inquired. "I've been thinking over that proposition of yours," explained Evans. "Yes?" "Yes, I've been thinking maybe I might swing it; but are you sure it's safe. How do I know you won't double-cross me?" "You don't know," replied the other. "All you know is that I got enough on you to send you to San