Fantastic Beasts and Where to Find Them
In 2001 J. K. Rowling wrote two books for Comic Relief based on her famous Harry Potter series, entitled "Fantastic Beasts and Where to Find Them" and "Quidditch Through the Ages". The Fantastic Beasts book, would ultimately lead to the mid-late 2010s series of films of the same name as part of the expanded "Potterverse".