D&D 5E: Book of Ebon Tides

Welcome to the Shadow Realm, a twisting and distorted counterpart to the lands you know. Here the shadow fey hold court, reveling in their frivolities and intrigues, while the darakhul hunt the unwary and those other peoples adapted to the shadows strive to simply get on with their lives. This plane of Shadow is ever changing and filled with adventure for those willing to explore the darkness.