The Hell's Vengeance Adventure Path begins with "The Hellfire Compact," an exciting new adventure in which the players take the roles of evil characters in the diabolical empire of Cheliax! A paladin of Iomedae and knight-errant of the Glorious Reclamation comes to the town of Longacre, inspiring the citizens to join the uprising against the Thrice-Damned House of Thrune. First as amoral mercenaries, then as retainers of the wicked archbaron of Longacre, the evil adventurers must move quickly to put down the uprising and keep the town from falling to the knights' rebellion. "The Hellfire Compact" is a Pathfinder Roleplaying Game adventure for 1st-level characters. A selection of new monsters, a gazetteer of the town of Longacre, details on the knightly order of the Glorious Reclamation, and the first installment of a new Pathfinder's Journal round out this volume of the Pathfinder Adventure Path! Each monthly full-color softcover Pathfinder Adventure Path volume contains an in-depth adventure scenario, stats for several new monsters, and support articles meant to give Game Masters additional material to expand their campaign. Pathfinder Adventure Path volumes use the Open Game License and work with both the Pathfinder RPG and the world's oldest fantasy RPG.