The gods of Poseidonis - or Atlantis - were powerful and real. Now they were determined to destroy the kingdom ruled by the father of Prince Vakar, the one man whose mind they could not read. The only way to save the kingdom was to discover that thing which the gods feared most.

To find it, Prince Vakar set out across the largely unknown world where dangers multiplied with every league. There he found savage countries and strange people - the wild Amazons; a voluptuous, ensorcelled queen; a too-charming girl who was half-horse, half-woman; dangerous magicians who ruled hordes of headless slaves; and the Gorgons, who could paralyze their victims at a glance.

Behind was his ambitious brother, determined that Vakar must fail. Even closer were unknown enemies set on his trail by the suspicious gods.

And to add to his troubles, Vakar had no idea of what he sought!