Daru was an elven mage in ancient Tosasth. Her spellbook was recovered by Tienarth in her library after defeating her ghost. The book contains the following spell.
Level 1: Read Languages, Hold Portal, Light, Protection from Evil
Level 2: Levitate, Locate Object
Level 3: Dispel Magic, Darkvision, Clairvoyance
Level 4: Polymorph Other, Polymorph Self, Massmorph
Level 5: Feeblemind, Passwall