W.I.T.C.H. Adventures (also referred to as W.I.T.C.H. original adventures, Adventure books or Adventure novels) are five chapter books that each star, and are narrated by, a Guardian to tell an original story set in comics' continuity. All five books were written by Lene Kaaberbøl and first published in Denmark in 2002 and 2003. They were originally written in English for Disney and Egmont.
- Susan Vandom (When Lightning Strikes)
- Martin Tubbs (Enchanted Music)
- Peter Cook (Heartbreak Island)
- Lilian Hale (Stolen Spring)
- Chen Lin (The Cruel Empress)
- Uncle Yao (The Cruel Empress)
Characters not seen in comics or TV series
- Daniel "Danny" Nova (When Lightning Strikes)
- Suzanne (Heartbreak Island)
- Empress... (The Cruel Empress)
- The Heart of Kandrakar
- Magic Mirror (The Cruel Empress)
At Disney's Annual Worldwide Artist Convention held in Italy, Lene Kaaberbøl was given the award as "The Best Disney Novel Writer of the Year" for her work on the W.I.T.C.H. Adventures series.