The Ice Giant

In this latest adventure at Mermaids Rock, Marina's father, a scientist, sets off to the Arctic alone on a research mission. But when Marina doesn't hear from him, she and her friends Kai, Luna, and the others set out on what could be a dangerous adventure to find him.

The walrus population in the Arctic is decreasing every year. Marina's dad, a scientist, decides to take a trip there alone to see if he can figure out why. Marina is concerned for his safety and makes him promise to let her k...