It is about a family called the Cahills who are a mass family in which every famous person in history is included. There are 4 branches of family:
Lucian- They are the world leaders and dominators. Lucians are decedents of Luke Cahill.
Janus- They are the artistic branch. Januses are decedents of Jane Cahill.
Thomas- They are the super athletes. Thomases are decedents of Thomas Cahill.
Ekatrina- They are the inventors and master minds. Ekats are decedents of Katrina Cahill.
There is also a mysterious force called the Madrigals which try to tear the branches apart.
Read the books (1-6 are out now) and this will make a LOT more sense.
Also check out the website
www.39clues.com It is also a trading card game so have fun!
zac11th