Book of the Kosst Amojan

The Book of the Kosst Amojan was an ancient Bajoran religious text which dealt with forbidden dark knowledge of the Pah-wraiths. It was considered highly dangerous and held in the Archives with no one allowed access to it except the Kai. The book contained information on how to release Pah-wraiths from their prison within the Fire Caves of Bajor.

The books, when opened, was devoid of writing until blood was spilled on its surface.

(DS9 episode: The Changing Face of Evil)