Regular print version originally published in the U.S. by Dutton.

"In the early 1880s, the Texas Rangers were beginning to bring law and order to that wild country. When a particularly pesky gang of bad Indians had to be cleaned up, Jess Roundtree was the man who undertook the job. He set out to get them and a clever stratagem soon had their leader, Mysterious Dave, in jail. That, however, was only the beginning of his troubles. It soon became apparent that he was not after a band of Indians, but a group of whites and Mexicans with inside information who were disguising themselves to throw suspicion onto the Indians. At this point, a beautiful Spanish señorita appears, claiming to be Mysterious Dave's sister. Using her as a distraction, Dave manages to escape. Now it was Roundtree's duty to atone for his negligence, track down Mysterious Dave, and put an end to his gang and their raids."--,Provided by publisher.