Kain's headquarters was the headquarters of the Vampire army. It appeared only briefly in the introduction sequence to Blood Omen 2. Kain and Vorador are depicted there in the introduction, plotting their movements against the Sarafan[BO2]. In the Blood Omen 2 manual, Kain mentions that "my castle lies in ruins". If he is referring to the headquarters portrayed in the intro, this implies it was destroyed after his defeat.