Twins Zach and Evie Mamuya and their friend Vishal Desai make up the Gemini Detective Agency, which is mainly an excuse to get pizza together or hit the go-kart track. But when a priceless diamond necklace known as the North Star is stolen before an auction, the kids tag along with the twins' crime reporter mom and find a few clues that make them think this was no ordinary robbery.

With the help of their classmate Sophia Boyd, the Gemini Detective Agency is on the case Will they be able to sort through the clues and solve the mystery in time?

Readers will love this interactive mystery, where clues can be found throughout the illustrations at the end of each chapter

The Gemini Mysteries: The North Star is an action-packed novel full of twists and turns that will keep readers guessing until the very end.