The return to Lemuria

Before an inversion of the poles, twelve people have mysteriously vanished in the four corners of the Earth. Among them, two identical twin girls from Shanghai are transported in a different dimension. They realise that they have landed on the lost continent of Lemuria before it has been submerged by the sea after a cataclysm. How are they going back home ? The only way, it's to engage in an inter dimensional war between the ten tribes of Lemuria and the seven malefic forces of the counter earth in the shadow realm, and save the future of the planet.