The Scarlet Halls is a dungeon wing (level 28+ and level 90 Heroic mode) of the re-introduced Scarlet Monastery in the Mists of Pandaria expansion. It replaces what were previously two wings, the "Armory" and the "Library". The Scarlet Monastery is a complex of two wings (previously four), each an instanced dungeon, for both Horde and Alliance characters.