Vampire of the Mists (Ravenloft, Book 1)

Jander Sunstar an elven vampire from the Forgotten Realms world is pulled into the newly formed dark realm of Ravenloft and forges an alliance with the lands most powerful inhabitant--Count Strahd Von Zarovich himself a newly risen vampire. But as Jander teaches the Count the finer points of being undead he learns that he is tutoring the man that drove his lost love insane!