SINOPSIS DEL LIBRO

<p>Welcome to Mermaids Rock! The entrance to the mermaid realm in the deep, blue ocean?<br>When the magic whirlpool malfunctions, it sends Marina and her friends to a dark, underground river. Exploring the caves and adventuring along the tunnels, they discover a jungle with amazing wildlife. But then the whirlpool disappears ? they're stuck! Stranded, the friends have to use all their skills to return home?<br>The fifth book in an exciting series...Seguir leyendo