A star has fallen from the sky, destroying the island known as the Devil's Elbow. Tasked by a group of elven bounty hunters to investigate a dark elf assassin tied to the catastrophe, the heroes travel to the blasted island only to find it crawling with prospectors, merchants, and mercenaries eager to salvage the legendary "skymetal" sure to have fallen from space. Yet the falling star brought more than just metal to the world of Golarion, and an alien menace from the Outer Void weaves plans of its own upon the heroes, prospectors, and drow who battle for the Devil's Elbow. This volume of Pathfinder also includes an exploration into the faith of Cayden Cailean (God of risks, adventurers, and alcohol), a gazetteer of the cosmos surrounding Golarion, a bonus adventure set upon a pirate ship, and several new monsters.