There are two main levels. In the Crowhaven Burial Halls, the Hero will find a few vampires, some rats, and a few Timber Wolves. There is some treasure in the burial halls, too - but nothing remarkably powerful.
Agronak gro-Malog claims he is of noble birth. He wants the Hero to travel to Crowhaven, a fort that's just north of Anvil to find evidence of his birth. The Hero must go through this fort to find and fight Lord Lovidicus at the end.