Thirst for Blood is a Pathfinder Adventure for four 1st-level characters. This adventure begins the Shades of Blood Adventure Path, a three-part monthly campaign in which a group of adventurers explore a ruined ancient prison to stop a vampiric threat to cover the skies in shadow. This volume also includes a look into Camazotz, god of bats, blood, caverns, and nocturnal predators, a gazetteer of the island settlement of Talmandor’s Bounty, new player options, and a selection of dangerous monsters.