Description:

The Thea Sisters have received an urgent message from their friend Will Mystery. The magical land of the clouds is in danger- the mouselets must find out why the clouds are disappearing!

Even their path to this kingdom is treacherous, since they can only enter from the top of the world: Mount Everest. Once they're inside, the mice meet fairies, elves unicorns and giants. But who can the Thea Sisters count on? It's an incredible journey to restore harmony to this enchanted land!