The Incunabulum Primeval is more than just a book it is in fact a powerful magical artifact.
this tome is enormous, nearly 2 feet tall by 18 inches wide, and almost a foot thick. The pages are an incredibly heavy parchment, while the cover consists of thin planks of wood that are bound and hinged in iron. The book is written in Dwarven, but also in a sort of cipher; no attempt at translating or decoding it functions without either the proper rituals, known only to the priesthood of Moradin.
The Incunabulum Primeval is currently in the possession of High Ancestor Durkik, who now that the siege is over is trying to unlock the ancient mysteries locked within.