For generations the misty Shadowline has marked the boundary between the lands of men and the lost northern lands that are the lair of their inhuman enemies, the ageless Qar. But now that boundary line is moving outward, threatening to engulf the northernmost land in which humans still live - the kingdom of Southmarch.

Aren has lived by the rules all his life. He's never questioned it; that's just the way things are. But then his father is executed for treason, and he and his best friend, Cade, are thrown into a prison mine, doomed to work until they drop. Unless they can somehow break free.... But what lies beyond the prison walls is more terrifying still. Rescued by a man who hates him yet is oath-bound to protect him, pursued by inhuman forces, Aren slowly accepts that everything he knew about his world was a lie. 

Welcome to the Five Isles, where war has come in the name of the invading army of Sor Sevier, a merciless host driven by the prophetic fervor of the Angel Prince, Aeros, toward the last unconquered kingdom of Gul Kana. Yet Gault, one of the elite Knights Archaic of Sor Sevier, is growing disillusioned by the crusade he is at the vanguard of just as it embarks on his Lord Aeros' greatest triumph. While the eldest son of the fallen king of Gul Kana now reigns in ever increasing paranoid isolationism, his two sisters seek their own paths.

It has been 20 years since the end of the war. The dictatorial Augurs - once thought of almost as gods - were overthrown and wiped out during the conflict, their much-feared powers mysteriously failing them. Those who had ruled under them, men and women with a lesser ability known as the Gift, avoided the Augurs' fate only by submitting themselves to the rebellion's Four Tenets.

Epheria is a land divided by war and mistrust. The High Lords of the South squabble and fight, only kept in check by the Dragonguard, traitors of a time long past, who serve the empire of the North. In the remote villages of Southern Epheria, still reeling from the tragic loss of his brother, Calen Bryer prepares for The Proving - a test of courage and skill that not all survive. But when three strangers arrive in the village of Milltown, with a secret they are willing to die for, Calen’s world is ripped from under him and he is thrust headfirst into a war.