In the old age of the once great planet Earth, the oceans have long dried up, and in their empty sea bottoms stand the last cities of mankind, for the once mighty continental heights are barren and frigid. The world is strewn with the ruins of star-faring civilizations of the Dawn ages, and somewhere in those ruins lies the legendary Kingsworld Legacy - which may yet save humanity. Trebor of Ambalia possesses the key to the Legacy. But can he use it - and will the remnants of a myriad lost nations let him?