The Bobbsey Twins: The Coral Turtle Mystery — Laura Lee Hope

“Who stole the coral turtle?” Flossie Bobbsey asks her twin cousins, Sandy and Sonny Watler. The Watler twins want to be detectives like the Bobbsey twins. “Here's our chance to solve a real mystery the way you do!” exclaims Sonny Watler.

While searching for an exquisite art object and the thief who stole it, the children spy both on a remote beach of Cayman Island. They give chase but lose their quarry, which sends them on an adventurous hunt of a deserted beach house and the remains of a crumbling fortress. Discoveries there and in the dimness of a sculptor's studio will puzzle and amaze readers throughout.