Doomsday Book

The Doomsday Book was a numbered list of universes in the Multiverse, created and maintained by the Council of Frogs. According to Sylvester Shoebill, it was named in reference to a point of history concerning William the Conqueror. The creation of the Doomsday Book involved the opening of a “registration office” where representatives of each universe were invited. The first universe to have its representatives reach said office thus got the enviable name of Prime Universe, although it did not actually have any particular cosmic significance. (PROSE: The Grand Multiverse Hotel)