The Orphans, Book 6 of The Realms
Wizard of the Central Spire, Arcane Brotherhood
This dark mystic leader of the Arcane Brotherhood is known as Meller. Very little is known of him. He IS the Wizard of the central Spire, this much HAS been confirmed.
Rumored to be over 200 years old, he may quite possibly be the most powerful Wizard in the realms. He is very careful not to openly defy or annoy The Harpers, Keldan, Black Staff, Alustrial or any of the other local STRONG powers for good. His diplomacy skills are known to be superb and he is extremely adept at not being found to be doing any overt evil acts.