B/X Dungeons & Dragons #1: Up and to the Left

An Elf, a Fighter, and a Halfing converge at the Keep on the Borderlands, banding together over their mutual thirst for fortune and glory. In a tavern, they hear rumors of the Caves of Chaos, where riches may await those daring enough to confront the monsters that dwell within. It is those distant caverns that the adventurers set off to discover the next morning.