CHRISTMAS FANTASY
The Claus Universe is Tony Bertauski’s interconnected series of dark Christmas fantasy and science-fantasy novels that reimagine Santa Claus, Jack Frost, Mrs. Claus, and other familiar holiday legends. Beginning with Claus: Legend of the Fat Man, the series blends mythology, technology, adventure, family, and the hidden history of Christmas.

WHERE SHOULD I START?
Start with Claus: Legend of the Fat Man, Book 1 of the Claus Universe. From there, continue with Jack, Flury, and the later stories as the mythology expands.
FAQ
WHAT IS THE CLAUS UNIVERSE?
The Claus Universe is Tony Bertauski’s interconnected series of dark Christmas fantasy and science-fantasy novels that reimagine Santa Claus, Jack Frost, Mrs. Claus, and other familiar holiday legends.
WHAT BOOK SHOULD I READ FIRST?
Start with Claus: Legend of the Fat Man, Book 1 of the Claus Universe. It introduces the mythology and provides the best foundation for the stories that follow.
DO THE CLAUS BOOKS NEED TO BE READ IN ORDER?
No. Most of the books are designed to stand on their own, so you can enter the Claus Universe at different points. However, beginning with Claus: Legend of the Fat Man gives you the strongest introduction to the world and its mythology.
IS THE CLAUS UNIVERSE FOR ADULTS?
Yes. The Claus Universe is written primarily for adult and teen readers who enjoy fantasy, science fiction, mythology, adventure, and darker reinterpretations of familiar Christmas legends.
WHAT GENRE IS THE CLAUS UNIVERSE?
The Claus Universe blends dark Christmas fantasy, science fantasy, speculative fiction, adventure, and mythological retelling. The series combines winter atmosphere and familiar holiday mythology with ancient legends, advanced technology, and interconnected worldbuilding.
HOW MANY BOOKS ARE IN THE CLAUS UNIVERSE?
The main Claus Universe currently contains 13 numbered books (and counting), beginning with Claus: Legend of the Fat Man and continuing through Candyland.














