The Auditors of Reality, a group of "celestial bureaucrats" attempt to eliminate the Hogfather, a jolly god-like creature who brings children presents on December 32nd, similar to the figures of Santa Claus and Father Christmas in the US and UK. Forbidden to interfere directly by "The Rules", they pay the Assassin's Guild to kill the Hogfather instead. The task is given to Mr. Teatime who has a reputation for ruthlessness and creative solutions. Mr. Teatime enlists the help of some gangsters to find a delivery person working for the Tooth Fairy, using his magic to break into her kingdom and stealing all the collected teeth. With these teeth, he is able to control all the children on the Discworld, commanding them to no longer believe in the Hogfather.