The Lightborne and the Darktouched have been at war for generations. While the soldiers of the Lightwatch hunt their enemy, those blessed by darkness seek refuge in the depths beneath the earth, hunting the abyss for treasures and knowledge.

When Lucas Devlin is thrust into the very heart of this conflict, his life is stripped away from him. Within the great hidden city known as the Abzu Complex, Lucas must learn the ways of the Darktouched and their ancient conflict with the Lightborne in order to save those he cares about.

But the web of fate is vast, and untold secrets and betrayals hide in the endless darkness of the void and the furthest reaches of the light...

Will appeal to readers of Roderick Gordon's Tunnels and T. Kingfisher's The Hollow Places.