Librarians
Librarians are the psykers of the Space Marines who survive an Adeptus Astartes Chapter’s rigorous screening and training to bend the powers of the Warp to their will for the benefit of their fellow battle-brothers and in service to the Emperor of Mankind. Beyond their psychic duties, the Librarians of the Astartes are also expected to record the great deeds of their Chapter and maintain the Chapter’s storehouse of ancient lore, the functions for which they are named.
