Treason's Shore

Acclaimed Inda series within Sherwood Smith's epic fantasy Sartorias-deles universe . Military fantasy woven with courtly politics, vast worldbuilding, and diverse charactersAfter ten years of exile on the sea, Inda returned home to protect his country from attack by an ancient enemy. But he found his home utterly changed. His old classmate Evred, a formerly powerless younger prince, was now king-and made Inda his Royal Shield Arm, the leader of defense for the entire kingdom.
His country's enemy, the Venn, are planning the largest naval attack in history, and the first line of defense is in a critically strategic strait to the north. Control of this strait has been contested for generations, often with violent conflicts, and Inda will need strong allies to overcome the Venn. Even with these allies, Inda is severely disadvantaged and outnumbered. Can Inda, military genius but only one man, find a way to defeat the powerful navy of the Venn and bring peace to his battered homeland at last?