The great exodus has begun. All the creatures of Amhuinn are going to the Cairngorms’ shelters. The great battle between the white druids and the black druids is about to begin. But first, Penny and Marcus have to find the formula to dephosphi...

The great exodus has begun. All the creatures of Amhuinn are going to the Cairngorms’ shelters. The great battle between the white druids and the black druids is about to begin. But first, Penny and Marcus have to find the formula to dephosphilate their parents and they will not hesitate to take a trip full of dangers in search of Zarathustra’s potion; to do this, they will have to unite the two halves of Shazza’s ring.