Cahills vs Vespers The Medusa Plot

The book is the first in the Cahills vs. Vespers series. The story revolves around the Cahill family who are forced to work with the Vespers when their family members are kidnapped. The Vespers demand that the Cahills steal a series of priceless artifacts that reveal the hidden past of the Cahill family and the secret of the 39 Clues.