A two-part story that reconnects with the vein of the great adventure, while maintaining the humour that made the success of the series. In a temple in Darshan, the oracle of the god Nymethny demands that he be sacrificed small white and red trolls. Shortly afterwards, Tetram's children are taken away. In an attempt to save them from an atrocious spell, he will have to, accompanied by Waha and Profy, cross the ocean to the distant continent, and understand why his white congeners remain so passive in the face of the actions of the monks of Nymethny.