Hogfather

the long version

Discworld's equivalent of Santa Claus, the Hogfather (who flies in a sleigh drawn by four gigantic pigs), has been spirited away by a repulsive assassin, Mr. Teatime, acting on behalf of the Auditors who rule the universe and who would prefer that it exhibited no life. Since faith is essential to life, destroying belief in the Hogfather would be a major blow to humanity. It falls to a marvelously depicted Death and his granddaughter Susan to solve the mystery of the disappeared Hogfather, and me