Hamun Krost

Hamun Krost is an Asshole. He is also a Red Wizard of Thay, and a Necromancer. The heroes encountered Hamun at the ruins near the Old Owl Well, where he had set up camp and his zombies were guarding the ruins. The Odor had grown extreme, and Halia Thornton had asked the party to investigate.

Hamun was not forthcoming about his 'ancient magical research'

When the party rejected his offer of payment to kill the nearby orcs at Wyvern Tor, he grew hostile. The party killed Hamun and his zombies, and Darien while in beast form tore out his dead throat with his teeth.