He is found in Dimhollow Crypt during Awakening. The Dragonborn witnesses his murder at the hands of Lokil. By his side is a copy of his journal, Notes on Dimhollow Crypt, Vol. 3. The other two volumes do not exist in-game.
- Notes on Dimhollow Crypt
Adalvald: "I'll never tell you anything, vampire. My oath to Stendarr is stronger than any suffering you can inflict on me."
Lokil: "I believe you, Vigilant. And I don't think you even know what you've found here. So go and meet your beloved Stendarr."
Vampire: "Are you sure that was wise, Lokil? He still might have told us something. We haven't gotten anywhere ourselves with..."
Lokil: "He knew nothing. He served his purpose by leading us to this place. Now it is up to us to bring Harkon the prize. And we will not return without it. Vingalmo and Orthjolf will make way for me after this."
Vampire: "Yes, of course Lokil. Do not forget who brought you news of the Vigilants' discovery."
Lokil: "I never forget who my friends are. Or my enemies."
- It is impossible to save him, as his death is scripted. Trying to approach him before his conversation with Lokil has ended will result in him immediately dying mid-sentence.