Gramps

A friendly old man in the Swamp Forest whom Geralt escorts to the shrine of Melitele, and who turns out to be a cannibal.

Gramps is an old man in the Swamp Forest outside Vizima in The Witcher, and he really does like to be called that. He seems harmless, chatty and helpful. He is also a cannibal.

In The Witcher

In Act II Geralt finds him at the landing in the swamp. In A Pilgrimage he asks to be escorted to the shrine of Melitele, and on the way he shares what he knows, including formulas and talk of the mage’s tower. At the shrine he tells Geralt about the witcher Berengar and invites him to visit his cabin in the swamp.

That visit starts The Cannibal. Gnawed human bones in the cabin give the old man away, and Geralt has to decide what to do with him. If Geralt goes for him, Gramps flees outside and is defended by carnivorous swamp plants. Spared, he hands over a formula for Hanged Man’s Venom. Gramps is fond of elf meat, finds dwarves stringy, and insists he never eats children.

Good to know

Go straight to the shrine: detours such as the swamp cave can make Gramps stop following you.
The route passes the Coccacidium, the target of the trophy quest Bloodthirsty Vegetation.
A copy of Ain Soph Aur, needed for A Mysterious Tower, sits in a bookcase in his cabin.