The Ash Vampire Dagoth Endus (found in Endusal, Kagrenac's study) has some unique dialogue that can only be heard if the player can sneak up on him or cast Calm to speak with him. Dagoth Endus will greet the player warmly and congenially offer them some ancient Dagoth brandy before they fight. If the player inquires about the brandy, Dagoth Endus will respond "It is a rare nectar beyond compare, distilled ages before your ancestor's ancestors. And a fitting toast to our challenge. Would you like to sample it?"

The player can then either accept or reject the offer. If the player accepts, Dagoth Endus will give you a bottle of Ancient Dagoth Brandy, although the player is not actually required to drink it. The brandy itself is actually quite potent and will damage 20 points of Intelligence and Willpower for a minute, so it may even be wiser not to drink it (it can later be sold for 1,500 gold). If the player rejects the offer, Dagoth Endus will state that it's a pity, but also that it's "a pity to waste it on a coward like you."

Following the exchange, Dagoth Endus will offer the player the first strike, stating "You're the challenger, and I am your host. So honor demands that you deliver the first blow."