Del Pinzo and others tried more of their tricks and in the succeeding volumes of the series is related about the water fight, the battle with more cattle rustlers, how the Yaqui Indians were trailed, and how the sheep herders were overcome. "The Boy Ranchers on Roaring River; or Diamond X and the Chinese Smugglers" is the title of the book immediately preceding the present volume, and in that Bud, Dick and Nort had some narrow escapes from unscrupulous men. Incidentally they helped the United States government bring to justice a large Chinese smuggling band.