Elowen endures six lonely years in a border outpost, having feigned infidelity to protect her noble beloved Karen from his father's deadly class-driven machinations. She secretly bears Karen's son in squalor, keeping the boy's heritage hidden while the child's father rises through the ranks to become the realm's premier monster hunter.
When Karen returns covered in battlefield glory, he relentlessly investigates Elowen's past, convinced the young boy possesses his specialized demon-slaying bloodline. As an obsessive noblewoman unleashes wild fiends to eliminate Elowen during a festival, the supreme commander must unmask his own family's deception before history repeats itself.
