The Orginal Adventures of Hank the Cowdog

The Original Adventures of Hank the Cowdog is the first book in the series, as well as Hank's first case, the first chapter, "Bloody Murder!", is the first time we see Drover. When called upon by Hank to solve the death of a hen, Drover faked a bad leg (a running gag in the series) and can't go investigate. It has 127 pages.