Hidden Clues (Library Binding) (ISBN-13: 9798765691281)

Two mermaid kids find a mysterious rock that leads them on a hunt, but for what? Treasure? A secret portal?

Jax and Tilly live in the underwater city of Merantida. When they find a strange item that seems to be from the Above world, Jax is sure they are hot on the trail to something big. But is everything what it seems, or is someone keeping a secret from him?

Readers practice closed syllables as friendships are tested and shenanigans run amuck in this adventurous tale.