By Joey W. Hill
After centuries of battling the Dark Ones, the angelic Joseph falls to his enemies when an attack severs his wings and plunges him into the depths of the sea, where he is rescued by Anna, the mermaid daughter of Arianne, and is confronted by the ultimate choice between duty and desire.
Severity reflects intensity, not value — “central theme” means a warning is a core part of the book, not that the book is bad.