Thought to have arrived on Eamon during a massive prehistoric rift storm, the enormous slab of land known as the Floating Island is not native to the planet and is home to unique flora, fauna, and minerals found nowhere else in the world.
Gravity-repelling minerals in the island's strata keep the mass levitating roughly two miles above the northeastern corner of Addar. Its perpetual shadow has reduced the land below to a pitch-black desert, while less buoyant material shed from the underside of the island has left it strewn with rubble and vast, jagged piles of debris. Near the center of the shadow, darkness is absolute.
The island's surface remains largely unexplored, though orcs riding specially trained zlanbeasts are known to have landed on it and a handful of human expeditions have mapped some its periphery using airships. Without flight or teleportation, the only known route up from Eamon's surface is a peak in the shadowed Mountains of Anguish whose summit rises to within a few hundred feet of the island's lower surface near its western edge; some ancient chains are said to hang there, dangling from a hollow that leads up through winding caverns to the island's surface.