The Cahill family has a secret. For five hundred years, they have guarded the 39 Clues - thirty-nine ingredients in a serum that transforms whomever takes it into the most powerful person on earth. If the serum got into the wrong hands, the disaster would rock the world. So certain Cahills have always made it their mission to keep the serum safe, buried, locked away. Until now. Thirteen-year-old Dan Cahill and his older sister, Amy, are the latest guardians of the Clues. They think they've done everything right, but a tiny mistake leads to catastrophe. The serum is missing and Dan and Amy have to get it back and stop who stole it…before it's game over. For everyone.
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really great series for age 10 to about 13
this is one of a huge series which have engrossed my 13 year old dyslexic daughter.
They are well read and fast moving.
is a combination of a mystery and a thriller really following some teens on a quest which twists and turns through the series
no but made me want to listen and I am 56! my daughter laughed out loud and begged me to get the subsequent books as couldn't wait for the credit to be available ..