Aderic's Repose is a sub zone of Gilneas. It is located outside of the city to the West and a bit to the south, of what may be the Trade District. Repose means to lie at rest or lie dead.
The location is a cemetery with a memorial hill, a gate and houses. If you follow the hill in the center with the winding path you will come upon a small house, which appears to be a "funeral home". Outside of the funeral home, is caskets and bodies in mummified wrap that are burning(possibly because of the one or more of the following; Forsaken plague warfare, Worgen Curse and/or not wanting the Banshee Queen to resurrect the bodies). Just inside the funeral home are stairs that lead to a crypt hallway that follow into what appears as Fishing Trainer and supplies shop located within the city's West end. Possible link but not connected(fish, bodies?) as a way to cart the dead from the city in secrecy.