Underground: The Day of the Sun

After the battle of Invaded, Caleath searches for his friends whisked underground, where magic is scorned and shackled.
He must rescue Raul and Nasith before the Day of the Sun. Beneath the artificial illumination of a strange red orb Caleath begins his journey plagued by relentless light.
Accepting custody of a confused young dread lord and guided by a feisty Gabrielle, Caleath struggles to unravel the conspiracy holding a race in thrall.
His journey to rescue Nasith and save Raul from being sacrificed drives him into the hands if his enemy.