Aodhan Cosain was a prince in another life. When his family was betrayed and murdered, he was forced into exile to save his own life. His very memory became a legend known as the Lost King. Now, years later, the same force that threatened him before has reemerged and will compel him to choose between remaining with his adopted family in obscurity or rising up and taking back the country he loves. Lorcan Fiohar has been searching for his best friend, the Lost King, ever since he escaped the Cosains' massacre. His search has brought him into the company of ruthless pirates who have their own motivations in finding the Lost King. Confronted with conflicting values and warring pirate companies, it has become a mission to even stay alive long enough to find his friend. Meanwhile, a young man named Caill with mysterious parentage is tasked with an important quest. As tensions continue to rise between the countries of Cosantor and Saldirgan, he is thrown into the thick of the fighting. When he is captured by a band of mercenaries, he begins to hear rumors of a rebel in the south who may hold the key to unlocking the mysteries of his past: The Shepherd of Fire.