When intersolar mining boss Derrek Archer rescues a beautiful stranger named Azsla from her emergency sleeping pod, the desire between them flares to dangerous heights. Azsla, a member of the ruling elite, has powers that can save Derrek's planet from an approaching asteroid, but if she reveals those powers, he'll learn that she's not only a spy, but also a slave mistress capable of controlling him and destroying everything he holds dear.
Severity reflects intensity, not value — “central theme” means a warning is a core part of the book, not that the book is bad.