Greg Thomspon 
Sinbad Rogue of Mars #1 [EPUB ebook] 

Eight years have passed since the assassination of the benevolent Zhar Dadgar and the curious disappearance of his heir. Akhdar, Dadgar’s villainous nephew, has usurped the Dozhakian throne and enslaved the Azurian people, igniting a civil war within the once peaceful kingdom. A prophecy foretells the coming of a stranger from a distant land who will vanquish the false king and restore the rightful ruler to the throne. Could Sinbad be that stranger, or is he merely a pawn in Akhdar’s treacherous game?