From the introduction: In La Isla del Diablo, the characters are stranded in a strange situation. They are invited by a NPC to know a small island with an indigenous community. Once there, the party's host disappears, prompting the characters to investigate on their own. They soon discover the placid retirement community is not exactly what they expected... User summary: Designed for the Cthulhu d100 system, the scenario is easily adapted to commercially published Cthulhu Mythos game systems.