Finally: confronting the monster in the Oxenfurt sewers, and the fight with the disgusting, infamous toad creature in Hearts of Stone.
The tension builds as Geralt goes on the hunt for the monster in the sewers of Oxenfurt. He finds Shani – a Redanian medic, and an old friend of his – having survived an attack by the mysterious creature.
Monster Contracts are side quests in The Witcher 3 that you can take on for extra money and experience. You usually get Monster Contracts from notice boards.