Deep in the interior of Kandrakar is a very special prison, built to hold a very special being confined. But now it is empty. The Time Ghost Gorgon has fled, and if he finds the four shells of the World Egg, the universe that Will, Irma, Taranee, Cornelia and Hay Lin will know will cease to exist.
Time travel is dangerous. You easily forget who you are and where and when you belong. But that's just one of the dangers that awaits the W.I.T.C.H. girls to solve the task the Oracle has set them - and save the universe. They can't afford to be scared - but how can you avoid it when the enemy always looks exactly like what you fear most?