Mermaid Nina is at it again in A Christmas Coral, and this time, she has a famous, jolly man along for the ride! The mermaid is swimming along one day when she notices that the coral on the ocean floor is turning white. She sets off to investigate what could be causing this, as she wants to save the coral (and the ocean!). She finds the solution with a surprising person: Santa Claus! Together, they are determined to solve the problem and

get the oceans back to their healthy, normal selves. Will Santa and Mermaid Nina be able to figure out what's going on with the coral? You'll have to read to find out!