Publisher's Synopsis
<b>The Undersea Mystery Club is going on a treasure hunt! In Book 2 of the series, Violet and Wally discover an old chest hidden in a sea cavern. In order to uncover who put it there and why, they’ll have to figure out how to open its rusty lock!</b><br><br>The mystery of the hidden chest sends Violet and Wally on a deep dive into the history of Aquamarina. Along the way, they learn about the importance of staying connected to the past and the value of<i> real</i> treasures—like cherished memories with friends. After the adventure, readers can flip the to the back of the book to learn more about the job of a historian and follow instructions to create a time capsule of their own!
