Chronicles of Khaldun: Crux of Eternity
A light reflection to the World (sometimes called the Prime Material Plane by scholars), the Feywild is a plane that forms the source of the elves and Faerie. It represents all that is still wild and mysterious in the world, and arcane magic is common there. All is beautiful and deep and untamed in the Feywild.
The eladrin are typically native to the Feywild, although many races may be found there.