He killed her fiancé. She wants revenge. But loving the devil might be her greatest sin. More coming soon! Wicked Devil is the fourth and final steamy story in the dark and decadent Ruthless Heirs series. Each book is a standalone novel complete with a HEA, of course, because even villains deserve a happy ending. This series is the next generation of the Kings of Temptation, but it is not necessary to read those stories first. Please this is a dark romance novel with scenes that may be triggering and sexually explicit in nature. Kings of Temptation Ruthless King Savage King Brutal King Wicked King Ruthless Heirs Ruthless Guardian Savage Prince Brutal Heir Wicked Devil