The Rover Boys at Big Horn Ranch; Or, The Cowboys' Double Round-Up

The three Rover brothers—Dick, Tom, and Sam—have swapped schoolrooms for the wide‑open plains, answering a call to help a friend whose cattle ranch is in trouble. Leaving bustling New York behind, they board a train bound for the rugged frontier, their curiosity sparked by rumors of a mysterious double round‑up at the notorious Big Horn Ranch. Along the way they encounter colorful cowboys, a skeptical foreman, and a hidden map that promises adventure beyond ordinary ranch work.

At the ranch the boys find themselves caught in a lively contest of skill and wit, where a daring cattle drive is doubled by a puzzling disappearance of prized horses. Their ingenuity is tested by a sudden stampede, a sly rival, and a secret that could change the fate of the whole operation. As they race against time, the Rover brothers learn that bravery and brotherhood are as essential on the trail as they were in any classroom.