Imaskarran Tome of Ice (NWN)

This heavy and tattered tome is labeled with a large and ancient rune that translates simply to 'Ice'. Among its more interesting passages is the following:

"Calling forth the icy grip within the constraints of a spell too often results in the death of the caster and target alike. Yet if the reagent of death, in this case the Skeleton Knuckle, is gripped within the strength of the Quartz Crystal and then the spell Mage Armor is cast, the tendrils of death are redirected. This potent magic effect has been placed on more than one amulet hung close to the wearer's heart, a ward to keep death at arm's length a while longer."