If you love David Lynch movies, you'll love this story. The narrative flashes back and forth between the events leading up to the trial of the hero and the trial itself, ramping up the tension between the characters and suspense in the plot as the action unfolds at breakneck speed.
Unlike in the first book in the series, How To Tame Your Duke (Princess in Hiding), in the second, the Princess assassination plot took a back seat to the mystery, surrounding the hero's imprisonment, and it's a very good thing. It didn't feel as if I'd read this story already, which sometimes happens in books with overlapping timelines, and the teaser in the epilogue has me holding my breath for the third installment.
For the sake of disclosure I have to admit two things: first, I generally do not mind suspending disbelief for the trope of woman-dressed-as-a-man, and second, I particularly enjoy love stories that start off as friendships. It also helped that the hero turned out to be such an appealing character despite his miserable childhood, adolescent trauma, and misguided youth.
It's not a small point in the novel's favor that the heroine meets him years after he's 'reformed' his dissolute ways, having sworn off drunk debauchery and gambling. The heroine is an endearing character in her own right: she's got spunk, intelligence, and honor. She has a reputation for being reckless, but you won't see her pulling TSTL - to stupid to live - stunts in this book.
In short, the story of a very well matched couple and their turbulent adventure, battling the odds stacked against their happiness, was a real treat to read.