Frank Haywood, son of an Arizona rancher and mine owner, and his Kentucky-born chum Bob Archer rid the range of a wolf pack, then find a message in a floating bottle that sends them riding for the Grand Canyon. Along the way they deal with an eavesdropper and a Moqui messenger, and at the canyon they go in search of a mysterious hermit living in a cave.
A brisk Western series story for boys; its portraits of Native people reflect 1913 attitudes. Download the free EPUB.