The Sheriff and the Widow — Chap O'Keefe

As dangerous as unstable dynamite - that was Sheriff Ross Kemp's assessment of Jessica Blackwood. She was darkly beautiful, and she was married to the richest rancher around. Mysterious notes, a bizarre accusation, and the bushwhack murder of her mad and jealous husband shoved Kemp into the biggest trouble of his life. Tried and convicted on a trumped-up charge, Kemp was sentenced to ten years in the state pen. His only hope was Jessica's lovely stepdaughter Ellen, but as Ellen began to uncover the truth she fell into deadly danger from blackmailer Orson Rymer and evil-minded gunslick Snake McClay.