Howling Halls

The Howling Halls was a place where a Elemental Shade escaped from. (DW: Love & Monsters)
 * Judging by the Doctor's comments to Elton Pope, the Howling Halls seem to be a prison of some sort.(DW: Love & Monsters) It may be of note that the Eternals resided in "hallowed halls" and called the Void the "Howling". (DWA: Doctor Who Annual 2006, DW: Doomsday)