Dungeon Module X1: The Isle of Dread - A Wilderness Adventure for Character Levels 3-7 (1980)

The Isle of Dread is an adventure for the Dungeons & Dragons role-playing game. The adventure, module code X1, was originally published in 1981. Written by David "Zeb" Cook and Tom Moldvay, it is among the most widely circulated of all Dungeons & Dragons adventures due to its inclusion as part of the D&D Expert Set. In the adventure, the player characters arrive on the Isle of Dread seeking a lost treasure, and there encounter new nonhuman races.