The mermaids are at risk!
In the final and third book of The Mermaid Chronicles trilogy, Maddie and her friends are faced with yet another adventure, the most difficult of them all. Outnumbered by gremlins and faced with an erupting volcano, they fight for the third oracle, which protects the mermaids of the ocean. After a series of failures, the girls are almost ready to give up. Will they accomplish this final challenge and defeat the gremlins once and for all?