Libram of ineffable damnation

A Libram of Ineffable Damnation was a tome of great value to arcane spellcasters of evil alignment.

Powers
To make use of the work, a wizard of evil alignment needed to spend a week cloistered and undisturbed, perusing the tome. Before, the book would teach them approximately half of what they needed to take their skills to the next level; after , these books instead increased the natural qualities of the magician that governed their spellcasting. In either case, the book disappeared after use, and no mage could gain the benefit of such a tome again.

Arcane casters whose alignment was rejected by the book suffered severe damage, were left unconscious for 50-200 minutes, commensurate to the damage taken, and needed an atonement spell cast in order to continue their studies before. After, rather than physical damage, their basic health was undermined with no period of unconsciousness; they still needed the atonement spell to continue advancing in their studies. Anyone not an arcane spellcaster in the first place who read the tome was at risk of insanity.

History
Munafik, high priest of Amun-Re, and Master of Tomes of Terbakar, was interred with a libram of ineffable damnation.

Appearances

 * Adventures
 * Desert of Desolation