At the uppermost edge of the northern kingdoms, towers shrouded in mist, lies Southmarch Castle. For hundreds of years it has remained hidden from the affairs of empire. Now its isolation can protect it no more. Southmarch is under siege; from both its neighbours, without, and the more insidious enemies who would destroy it from within. Even further to the north, within the ancient walls of Qul-na-Qar, in a land of silence and gloom, the Twilight People gather to hear Ynnir, the blind king, pronounce the dark fate of human kind. In the south, the Autarch, the god-king who has already conquered an entire continent, now looks to extend his domain once more. It is upon Southmarch that the armies advance, and to its people that darkness will speed

Darkness has fallen on the lands of the sun as an army of misshapen fey spill out from beyond the Shadowline. At their head is Yasammez, dark creature of nightmare. A furtive bargain was struck at the gates of Southmarch and the castle was spared, but centuries of enmity will not be so easily appeased. Meanwhile Barrick, heir to Southmarch and cursed with madness, has crossed the Shadowline into the realm of his people’s ancient enemy. There are stranger things than death here - stranger and older. Much further south, shadow is also falling over the reign of the Autarch, god-king and supreme ruler. Quinnitan, junior wife, must flee the royal household or die, her greatest secret as yet hidden even from herself. Ancient blood flows through her veins and she will become a unique weapon in the fight against her greatest terror. And beyond the ken of all but a chosen few, the gods are awakening and the world is changing …

As shadows threaten to consume the kingdom of Southmarch, Barrick Eddon, heir to March throne, battles his way across the sinister Shadowlands. He must journey through this dangerous, inhuman realm to fulfil a pact—as this may be all that can prevent the atrocities of a full-scale war with the Twilight people of Qul-na-Qar. Meanwhile, the assault upon Southmarch has truly begun. Yasammez, the formidable head of the Qar army, has ordered the attack, believing that the pact between humans and Qar has been broken. Unless Ferras Vansen, Captain of the Southmarch Royal Guard, can convince her otherwise, the humans are sure to meet the dark end that has been promised to them…

Barrick Eddon, prince of Southmarch, is no longer entirely human. He has vowed to safeguard the legacy of the dark Qar race, and must now decide where his loyalties lie. His twin sister Briony has a difficult choice of her own. Her father, King Olin, is held captive by the Autarch, a mad god-king who plans to use Olin’s blood to gain unlimited power. And the castle of Southmarch still remains in the possession of Hendon Tolly, Briony’s murderous relative. As time runs out, will Briony decide to save her father's kingdom… or her father? As the foretold Great Defeat draws near, history is stripped of its costume of lies. Poets and players, mortals and fairies, warriors and gods—all will have their roles to play as the fate of the known world hangs in the balance