Image: Rebel Wolves / Bandai NamcoOfficial screenshot from Rebel Wolves / Bandai Namco.
The Unquenchable Thirst is a hidden achievement for uncovering the truth about a vampire living in Svartrau. It comes from a side quest line in the city.
Complete Vicho's quests in Svartrau, finishing with The Good Samaritan during the day.
Svartrau closes off at Infamy 9, so work through this line before your Infamy climbs that high. Keep a save before the final quest.
Find out the truth about Vicho.
SvartrauSvartrau is the capital of Vale Sangora, the city at the center of the valley. It has the most vendors, three scouting towers and Greifberg Castle, so you will keep coming back.
The Good SamaritanThe Good Samaritan is a short follow-up to A Study in Crimson in Vicho's questline. A Svartrau medic asks you to carry medicine to a farm south of the city, and what you find there is grim.