Keane waved his hand vaguely. "There's a room for pretty much everything. As a Grey witch, you can access more than either a Light or Dark wizard can, but you are still only human. House elves, for example, have their own room, and most books have literacy spells woven into them, so even if one is never taught their letters, they can still understand the words. This spell also translates the written language to whatever language the reader is most familiar with."