Thelanis, also known as the Faerie Court, is one of the planes. It is a realm of stories, in which faerie tales influence both settlements and their inhabitants, and narratives and metaphors shape reality and the laws of physics. Arcane spells are enhanced on Thelanis and time flows differently. Thelanis is home to the fey, most notably the eladrin.
The Faerie Court is a realm of magic and stories, and its geography is unlike anything in the Material Plane, making journeys very challenging. Their most powerful inhabitants, the archfey, shape their domains with their power to serve their stories, and the ones ruling the eladrin cities known as feyspires can travel with them to Eberron from time to time, bringing a piece of Thelanis to the realm of mortals.
The most populous of inhabitants of Thelanis are the eladrin and the gnomes, both of which live divided amongst the Summer and Winter Courts. They live amongst lush feyspires. Other fey inhabit Thelanis, including banshraes, dryads, dusklings, killoran, nymphs, petals, satyrs, and sprites.