The Sacrifice is a young gnome child who is the son of Zul-Cheray and elder brother of Zul-Gutusolly.
He is chosen to be the sacrifice to Zulrah, but the player intervenes and asks High Priestess Zul-Harcinqa to be the sacrifice instead. Harcinqa allows the player to become the sacrifice, saddening the sacrifice and his family, as they would not receive extra rations of sacred eel. Despite this, he thanks the player for allowing him to live his life a bit longer.
Sacrifice is the solution to the master anagram clue: CAR IF ICES. He will give you either a puzzle box or a light box.