Andrzej Sapkowski's The Witcher: The Witcher

Geralt pursues a proclamation from a king of a bloodthirsty monster plaguing his palace. A hefty reward is offered to cure the beast, but not to kill it, for the king holds a secret--what lies beneath the palace is beyond the spawn of evil. Tried and failed by charlatans, Geralt sets out to claim the bounty--by decree of the king or by the pleas of those who wish the creature dead.

This graphic novel is the fourth in a series of adaptations from Sapkowski's acclaimed short story collection The Last Wish