When the mysterious Gauntlight, an eerie landlocked lighthouse, glows with baleful light, the people of Otari know something terrible is beginning. The town's newest heroes must venture into the ruins around the lighthouse and delve the dungeon levels far beneath it to discover the evil the Gauntlight heralds. Hideous monsters, deadly traps, and mysterious ghosts all await the heroes who dare to enter the sprawling megadungeon called the Abomination Vaults! Pathfinder Second Edition's most popular campaign yet bursts from the pages of this massive hardcover compilation, containing all three adventures in the fan-favorite Abomination Vaults Adventure Path, a dungeon-delving campaign like no other, along with support articles, rules, monsters, and more!