Apocrypha of the Nightbringer
The Apocrypha of the Nightbringer is a forbidden text maintained by the Order of the Lost Rosetta, an order of the Adepta Sororitas. The text gives details on the mysterious Necron race. The existence of the Apocrypha was disclosed to Father Librarian Jonas Ureile by Sister Dialogus Ptolemea while stationed on the planet Rahe's Paradise. Within its pages are descriptions of the Scarabs and the Tomb Spyders of the C'tan's servants.