Tome of Arcane Knowledge
From Eacceleration T4c
Go to the Great Library (east from Raven Dust crypt entrance) and speak with Filandrius. Say "Foreign magic", "Need", "Filnar'thir", "Darkness", "Get it" and he will send you to kill Anthor the Mad and get the Tome of Arcane Knowledge.
Go to Stoneheim and find Anthor the Mad (located northeast from spider cave entrance). Kill him and you will receive the Tome of Arcane Knowledge.
Return to Filandrius, click on him and he will take the Tome of Knowledge. He will reward you with a Belt of Unstable Protection and a Gem of Unstable Protection. You can also learn from him new spells.
NPCs involved: Filandrius
Mini-Bosses involved: Anthor the Mad
Quest Reward Synopsis: Belt of Unstable Protection and Gem of Unstable Protection (0 reqs), can now learn the new spells.