Return of the Tyrant
A flamboyant mage who initially hired the party to find a cube of force within the tower of Ignatious Voltain. The plot turned out to be a ruse — Siegfried was only interested in claiming the magical tower for himself and simply wanted adventurers to do the dirty work (defeating guardians and bypassing deathtraps) for him.
However, Siegfried failed when he led his cronies in a surprise attack against the party, in part due to the timely arrival of Daven on the scene. He managed to escape through a shadow door and has not been seen since.
Thanks to Sindra’s wild surge that created an anti-magic zone, now no one can use the mage tower. Sucker!