Ascien Keith 
The Lost Prince Book One: Tset-su Chronicles [EPUB ebook] 

In the Neolythic Era of Kingdom Tset, three young princes acquire the skills necessary to become King.Each man is uniquely talented, and on the verge of greatness.For one, the world is at his feet. For another, the world is his for the taking. For the last, the world is unforgiving.But all three will soon discover–while on their unpredictable journeys–that it is all too easy to become lost.. . ..