The international best selling series continues... Ythaq is a strange medieval planet where the marooned survivors of a spaceship crash are just trying to survive. The young lieutenant Granite and her friends attempt to join the main group of survivors, but they encounter strange characters that hide from them the mysteries of the planet Ythaq. Discover the truth behind Dhokas, Khengis and Hetzel, and the man with an enormous insect grafted in his back!