Contract: Mysterious Tracks
Witcher contract
Velen suggested level 20 
On the world map
From the journal
In the village of Lindenvale Geralt came across a highly unusual contract. A certain hunter was worried by some strange tracks he had found in the woods and sought someone who could help him determine to whom - or to what - they belonged.
In the village of Lindenvale Geralt came across tracks which indicated a beast of considerable size prowled the area. As a declared defender of mankind against monsters, he decided to investigate the matter.
The tracks took the witcher straight to a fiend's lair. Geralt quickly determined, however, that this monster was not the true threat to the local populace - not compared to what had killed it. That's right, something had beaten him to his initial task and slain the fiend, and he suspected this something was a chort attacking in an act of territorial warfare. Geralt had no other choice but to lure this powerful monster to him and attempt to slay it.
Geralt fought long and hard against the chort and in the end emerged victorious. After taking a trophy as proof of his deed, he went to Lindenvale and collected the reward promised by the hunter.