Joss, the seventh son of the Supreme Overlord of the Universe, must team up with a human girl to re-create Earth, when the planet is accidentally erased from existence.

"With her parents off traveling the globe, Lenora is bored, bored, bored -- until she discovers a secret doorway into the ultimate library. Mazelike and reality-bending, the library contains all the universe's wisdom. Every book ever written, and every fact ever known, can be found within its walls. And Lenora becomes its newly appointed Fourth Assistant Apprentice Librarian. She rockets to the stars, travels to a future filled with robots, and faces...

Examines the origin, structure, and workings of the universe, including galaxies, stars, dark matter, light years, black holes, and other aspects, and describes space exploration from ancient astronomy to modern probes.