The Beast of Crookback Bog - The Witcher 3

At Crow Perch Geralt took on a contract to kill a beast attacking merchants journeying to the Baron's estate. The witcher spoke with witnesses and learned all the monster's victims had their throats torn open and were partially eaten. The only man to survive an attack by the beast claimed the monster came from Crookback Bog.

The beast of Crookback Bog turned out to be a werewolf. Geralt killed the monster and was thus able to take its tongue back to Crow Perch and exchange this trophy for his promised reward.