Si'anwon

Si'anwon was once a giant Trow city that stored Runestones, ancient artifacts and knowledge that they had collected during their conquests. When the Trow began their conflict with the Callieach, the magic users retaliated by flooding Si'anwon with the northern sea, collapsing the city into an underwater chasm. In its place is now known as The Deep

Many years later, a sorcerer named Bah'lal discovered the lost sunken city, and went into the Deep to undercover the secrets that would turn him into a powerful necromancer.