There was bad Trouble at Tres Piños and Slim Marvin rode plumb into it. But Slim was not the sort to mind trouble in a good cause. And he got it. Night raiders, cattle rustlers, bad men, and all their assorted villainies.

Trouble at Tres Piños by J. Allan Dunn is a twelve chapter novella and was published in Western Action Novels in 1937.

Joseph Allan Elphinstone Dunn (1872–1941), better known as J. Allan Dunn, was one of the high-producing writers of the American pulp magazines. He published well over a thousand stories, novels, and serials from 1914–41.

Trouble at Tres Piños contains 6 illustrations.