Sequel to In Trouble. Now settling down into the Mako Island Pod, Zac thought life was going to be easy for him. But when two new mysterious mermaids join the pod, along with an ancient prophecy stating the destruction of Mako Island and a mermaid hunting group active, he isn't out of the clearing just yet. Will he be able to overcome fate and save himself from being in trouble?

Three years after defeating Rick and Lucien, Zac's life with Evie on Mako Island had been nothing short of perfect and peaceful. That peace is broken when he ends up being brought into a project to find the Trident of Mako Island and restore the balance in the seas. Now confused by his own past and the Trident's, will Zac follow through, or wind up in more trouble than ever before?