The story takes place on a distant planet. The planet - alike the Earth - is divided into continents, most of which is inhabited by a number of races of different beings. Due to the fact that the civilization development of the world corresponds to early middle ages, the communication between particular continents is, in fact, not possible. Thanks to this, on each continent there was developed separate culture and the inhabitants of particular continents are different from each other. There is a rumour among the more developed parts of the population, which says that somewhere "over the ocean" there are other beings, other towns and villages, however most people consider this to be day-dreaming of presumptuous thinkers. Of course there were many brave men who have taken the risk, either to gain fame or money, and set off for a long cruise, however there is no trace left of him...