Cathy's Ring by Sean Stewart, Jordan Weisman, and Cathy Brigg

Hey mystery lovers! If solving puzzles and piecing together clues is your thing, you don't want to miss Cathy's Ring. In the third (and final) installment of Cathy's adventures, she's once again running for her life as she tries to unravel the mysteries that surround her. This time Ancestor Lu has a gang of professional killers after her. But that's not her only problem. A new love interest shakes up Cathy and Victor's couple status and Cathy is torn between the two. Trail Cathy's adventures and visit the website, call the numbers and leaf through the trinkets in the book for clues!

The winning set will come with the entire set of Cathy's series -- Cathy's Key, Cathy's Book and Cathy's Ring.

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