[Source] The Troll of Vergen is a secondary character in The Witcher 2: Assassins of Kings. He can be found in the troll lair in the ravines outside Vergen during Chapter II where is enjoying a bit of elf and onion soup. He is also the husband of the She-troll of Vergen. If Geralt decided to help both the trolls, at the end of Chapter II, the creatures will side Vergen defenders in the final battle with Henselt's army. On Roche's path, Geralt and Vernon Roche meets the Troll of Vergen at the end of the Chapter, on the road for Vergen, after Geralt has dispatched the mist.