Pharasma’s holy book is The Bones Land in a Spiral; much of it was written long ago by a prophet, and many of its predictions are so vague that there is much debate about what events they foretell or whether they have already passed. Other sections were added later and deal with safe childbirth, disposal of the dead to prevent undeath, and so on.
In many temples, especially older ones, the holy book exists as a collection of illuminated scrolls organized by topic. Created with rare inks and metal filigree, some of these collections are historical artifacts worth thousands of gold pieces. As each scroll has particular prayers needed for various temple ceremonies, in many cases a priest only needs to bring the appropriate scrolls to the service, leaving the remainder in a safe place. Each scroll is held in a gray silk sleeve called a mantle to protect it from wear and mishaps. As mantles wear out after years of use, they must be disposed of, but church doctrine says they cannot merely be discarded, and a used mantle is either walled up in a tiny compartment within a temple, or (preferably) sewn into a burial shroud of a priest or other notable member of the faith who is about to be buried. Corpses fortunate enough to bear a Pharasmin mantle as part of their shroud are said to be especially resistant to the predations of the undead, including being animated or turned into spawn.