Zeek Takes On The Realms
Dark priest of Shar working to bring down Arabel and maybe all of Cormyr.
Donovan infiltrated Arabel before the PCs showed up and disguised himself as the tavern keeper Jarl. He summoned shadow monsters to terrify the populace in to believing only Shar could save them, and blamed it on the cursed Sir Severin. At the moment of the sacrifice to sanctify the town to Shar, the party burst in and stopped him.
Has since been proven to be behind the goblin uprising, and may have had a hand in the attempted portaling in of a Shadowfell temple.