Visenna's diadem

Visenna's diadem was a chalcedone amulet to which she owed most of her magical abilities.

Functions

 * casting spells on demand:
 * Detection
 * Read
 * Search
 * Telempathy
 * "remembering" and casting spells from the last three read spell scrolls (e.g. Grealghane)
 * automatic protection against mind spells
 * allowing the wearer to understang the nature of every wound, illness or ailment

Flaws

 * devastating impact on the Visenna's physical and mental health