When she incurs Neptune's wrath by finding a diamond ring under rocks in the ocean, Emily is put under a curse that will force her to choose between being a mermaid or human, and searches for

Convinced that his nightmares herald an approaching threat, Neptune enlists half-mermaids Emily and Aaron for a top-secret mission to find and eliminate the source of the trouble. Aligned to…

Emily and Aaron discover a ghostly pirate ship that only they can see, and it is up to Emily to enter a portal to bring the ship's passengers back before the portal is closed forever. Aligned

Emily is finally enjoying a swimmingly peaceful life on Allpoints Island, but her fun is cut short when she learns that the Windsnaps and friends must return to their old home, where…