The Heath Cousins and the Moonstone Cave (2nd ed.)

Addie B. and her cousins, Jack, Beanie, and Bodie are mourning the loss of their grandmother Winnie. While visiting their grandfather's beach house in Maine, Addie receives a mysterious treasure box once owned by her grandmother. In it is a moonstone ring and a mysterious poem. The poem leads Addie and her cousins to nearby Moonstone Cave where together they enter a secret and magical garden and embark on an adventure of a lifetime. Along the way, they meet wonderful friends like Gemma, who remi