The subsequent Everworld novels continue to introduce mythologies, and in the process, Applegate creates a new mythology of her own, in which human endeavors are placed in a vast cosmic scheme in which everyone is important, even though in any individual novel they may seem like pawns.

Landof Loss focuses more on Aztec mythology than Norse mythology and introduces the Coo-Hatch, aliens from yet another world. Enter the Enchanted tells of the survival of Arthurian culture in Everworld and shows that the various cultures and their gods know about each other and mix with each other. Realm of the Reaper delves more deeply into Norse myths about life and death and the underworld. Once the teens meet Merlin in Land of Loss, the grand contest of universe-shaking powers begins to reveal itself, and dreams do seem more real than real life.