When a tour bus full of sci-fi enthusiasts disembarks in Blarney Green, the lively bunch of costumed characters bring along a fresh wealth of unexpected surprises. Unfortunately, not all of the surprises are pleasant. In a shocking turn of events, bestselling author Austin March, famous both for his books and his narcissism, is discovered murdered mere hours after arriving in town, a gold fountain pen driven through his heart.

Narrowing down the suspect list puts Penny and her friends into harm's way more than once. Will she ultimately uncover a killer so that handsome Detective Inspector Finn Campbell can throw the book at him, or will she find herself suffering and unhappy and potential fatal ending?