Question: Maugrim is a captain of the secret police for the witch who froze Narnia in what event?
Sentence (from "Maugrim"): In early American editions of the book, Lewis changed the name to Fenris Ulf (a wolf from Norse mythology), but when HarperCollins took over the books they took out Lewis' revisions, and the name "Maugrim" has been used in all editions since 1994.
Relevant evidence: No