PENGUIN PERIL. The penguins have mysteriously disappeared from the icy seas and the mermaids are worried - where can they be? Molly and her mermaid friend, Phoebe, search everywhere. Could the Dark Queen be behind the trouble? TURTLE TROUBLE. Molly and her mermaid friend, Shanti, are on their way to a tropical island to rescue the turtles trapped there. But danger is lurking in the coral reef. And soon it’s up to Molly to save the turtles and Shanti too….