The 39 Clues | The 39 Clues Wiki | FANDOM powered by WikiaPublished by Scholastic , The 39 Clues has grown to includes the books as well as cards, a website, games, competitions, character biographies, and much more. Amy and Dan Cahill never knew their parents. They passed away in a fire when the siblings were young and their stingy grandaunt Beatrice became their guardian. However, on the weekends, Amy and Dan stayed with their grandmother, Grace Cahill , whose adventurous life gave her great stories to entertain her grandchildren with. When Grace passes away, many relatives gather at the reading of her will. Amy and Dan learn that they are part of the Cahill Family : an ancient family with four secretly five branches: the Lucians , Janus , Tomas , and Ekaterinas , and secretly, the Madrigals.
The 39 Clues Book 7 sneak peek with Peter Lerangis
The 39 Clues