Mastermind

Hell's Belles #4

by Sarah MacLean

Book 4 in the Hell's Belles series

Genres: Historical Romance, Romance, Historical, Historical Fiction, Fiction, Adult, Audiobook

384 pages, Paperback

Expected publication May 26, 2026

About the author

New York Times, Washington Post & USA Today bestseller Sarah MacLean is the author of historical romance novels. Translated into more than twenty-five languages, the books that make up “The MacLeaniverse” are beloved by readers worldwide.

In addition to her novels, Sarah is a leading advocate for the romance genre, speaking widely on its place as a feminist text and a cultural bellwether. A columnist for the New York Times, the Washington Post and Bustle, she is the co-host of the weekly romance podcast, Fated Mates. A Rhode Island native, Sarah now lives in New York City.

Reviews

[Deborah]

“I am told you are the Duchess of Trevescan,” he said, the words low and smooth. Like the finest scotch whisky.

She raised a brow, ignoring the ice in his steely gaze. “I am.”

“Fascinating,” he replied. “As I am the Duke of Trevescan, one would think we would have met.”

[Robin]

it’s confirmed that this is the duchess’s book and IM SO READY

[Jordan]

One time at work, I was walking toward my desk and I saw all these people clustered around a woman holding a baby in a lil parka and I sighed because I was v. uninterested but then I got closer and realized it was not a baby but actually a smol Saint Bernard puppy and then I was V. INTERESTED and that is the difference between how I felt about the Duchess of Trevescan's situation in Bombshell vs the last page of Knockout

[sof ♡]

so….. we finally have a title MASTERMIND (perfect for duchess book) and a pub date it’s so far away but it’s ok i can wait another year its fine

[fransarylibros]

Just finished Knockout, so
1)2024 isn't coming fast enough and
2)SARAAAAAAAAAH?????!!!!!!!
3) It was one of my theories that thing, but I thought I was crazy for even thinking about it 🤣🤣

Update 31/01/24: And the title is Mastermind? Yay! It's totally Duchess (we also need her first name though)

Pub date: 2025?! 😭😭

[Paige]

Did I know that Book 4 of this series (Duchess's book!!!) was called Mastermind? I don't think so!

[Mrs. Olson]

Oh my gosh I can't wait!! Just finished reading Knockout and then listening to Knockout. So good!! It was slow to start for me, didn't grab me right away as the other two did, but then it flew, and then I got to the last page of the epilogue... 2025!!!!

[busyreadingwithASD⋆.ೃ࿔*:･]

*possibly a dumb question* - Is this going to be Catherine's book (the one who was super young and married to Coleford). I hope she gets a happy ending!

[Hayley Morse · Rating 5 out of 5]

The epilogue of “Knockout” has me SQUEALING to get my hands on this book. I’m so excited for Duchess to get her due!!!

[Ala]

31st Jan 2024

THERE'S A TITLE!!!!!

---

6th Jan 2024

Ma'am, pls send someone to help me pick my jaw up from the floor. I just finished reading Knockout, and this is a CRY FOR HELP.

[Twisted Metal · Rating 5 out of 5]

Serious question.... Who is rating 1 star to a book that isn't out yet? If you had the arc, then where is the review?

[Ntokozo Magadla]

Cannot wait!! So excited!!

[Robin-Ann · Rating 5 out of 5]

I had a feeling there was no Duke... I can't wait to read this one!

[alofa]

NO BC I KNEW SMTH WAS SUSPICIOUS ABOUT THE DUCHESS 😭😭 AFTER HOW THE LAST BOOK ENDED AND HAD SET THE PLOT FOR THIS BOOK I SRSLY CANT WAIT FOR THIS ONE 🤩🤩