Problem at the PlaygroundPaperback, 8 October 2019

Dive into adventure with Violet the mermaid and Wally the narwhal as they solve the mystery of the disappearing playground! From Epic! Originals, Undersea Mystery Club is a fun, inspiring series about curious friends who work together to uncover the truth--learning lots along the way!

It's an exciting day in Aquamarina! The entire community has gathered for the opening of a new playground. But when the equipment falls apart because some of the pieces have vanished, it's up to a mermaid named Violet and her best friend, Wally the narwhal, to solve the mystery of what happened.

After the adventure, explore fun facts about ocean science and civil engineering included at the back of the book!