9781877858451, titled "Hell Ranch: The Nightmare Tale of Voodoo, Drugs & Death in Matamoros" | Amer Focus Pub/Uscccn Intl Inc Pub, October 1, 1996, cover price $16.95 | About this edition: When American pre-med student Mark Kilroy mysteriously vanished during a spring break night in Matamoros, Mexico, with his college pals, even those who feared the worst never suspected the staggering magnitude of the horror that claimed him.

9780890157343 | Eakin Pr, September 1, 1989, cover price $16.95 | About this edition: When American pre-med student Mark Kilroy mysteriously vanished during a spring break night in Matamoros, Mexico, with his college pals, even those who feared the worst never suspected the staggering magnitude of the horror that claimed him.

9780451171641 | Reprint edition (New Amer Library, February 1, 1992), cover price $5.99 | About this edition: Describes the disappearance and brutal murder of a young American college student, Mark Kilroy, in Matamoros, Mexico, and the bizarre, drug-running cult responsible

9780525249467 | E P Dutton, March 1, 1991, cover price $21.95 | About this edition: Describes the disappearance and brutal murder of a young American college student, Mark Kilroy, in Matamoros, Mexico, and the bizarre, drug-running cult responsible

9780849907838 | W Pub Group, October 1, 1990, cover price $14.99 | About this edition: Recounts the disappearance of 21-year-old college student Mark Kilroy, and the discovery that he was the victim of a drug cult that practiced human sacrifice