Deep Trouble (The Secret Mermaid #5)

Sue Mongredien Illustrated by Maria Pearson

Secret Mermaid Molly must venture into the ocean's darkest depths to help find mermaid Pearl's missing shell. The Dark Queen's sea snakes are on the prowl, and then they discover Pearl's shell is inside a huge underwater volcano that could erupt at any time. Budding mermaids everywhere will love this se...