Blackthorn, Princess Aria and Oglok ride again A young man desperate to save his sister from the raiders who kidnapped her to slavery... An ancient undead released after half a millennium... Four sorcerous First Men who will kill half a world to keep their darkest secret... And three champions who will stand for Mars against horror and tyranny--or die trying Join Earth General John Blackthorn, Princess Aria of Mars, Oglok the Mock-Man and an ever-expanding cast of rebels, monsters, magicians and villains battling to solve the mystery of the ancient Harmony Spires. From award-winning author...