Book Two of the Subterranea Saga follows Claudia Kobb and Haverstagg as they search for a way to free her father from the demon, Enshalaan. No longer a naïve little girl, Claudia has become cold and callous as she struggles to find her place in a world where she has been branded a heretic, like her grandfather before her. Hunted by the Lord Martyr’s High Warders and the would-be usurpers of Roak’s Forge, Claudia and Haverstagg are forced to take an unlikely, and possibly untrustworthy, ally to guide them into the dark heart of the great Undercity of Subterranea to infiltrate the palace of the Lord Martyr himself. Secreted within deceptive beauty of those palatial walls are the secrets of the Ambraic demons, and the means to drive the parasitic entities from those they dwell within. But will Claudia be seduced by the very darkness that haunts her if it means she can finally be reunited with her father?