The Duke Who Knew Too Much | Heart of Enquiry | Author Grace Callaway The Duke Who Knew Too Much | Heart of Enquiry | Author Grace Callaway
Grace Callaway

The Duke Who Knew Too Much

Book 1: Heart of Enquiry

About the Book

#1 National Bestselling Regency Romance

He’s a rake accused of murder. She’s the spinster accusing him. Enemies make the hottest lovers.

A Stranger to Love
Alaric McLeod, Duke of Strathaven, is known as the Devil Duke for his wicked ways. Tormented by his past, Alaric knows better than to trust a woman yet finds himself ensnared by a spirited, virtuous virgin—who accuses him of a crime he didn’t commit. Is she his worst nightmare … or his salvation?

A Novice to Desire
Emma Kent is an independent country miss cast adrift in the ton. When a depraved encounter with an arrogant rake lands her in intrigue, Emma’s honor compels her to do the right thing. But desire challenges her quest for justice, and she must decide: can she trust her heart to discover the truth?

Bound by Passion and Peril
Alaric and Emma engage in a battle of wits and will. As their attraction flares, the true enemy stalks their every move. With danger looming, will they solve the mystery and find true love before it’s too late?

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The Duke Who Knew Too Much (audiobook) by Grace Callaway


This book is also available on audiobook from the following online booksellers:

Narrator: Erin Mallon
Format: Unabridged
Runtime: 10h 15m


“This book is FIRE…Alaric & Emma make you believe that the passion and relationship is as real as the book in your hand.”

Regency and Romance

“Readers looking for a good historical mystery/romance or a historical with a little more kink will enjoy The Duke Who Knew Too Much.”

– Smart Bitches, Trashy Books

“This romance with kick and steam beautifully blends a strong, principled heroine with the inevitably jaded and emotionally damaged hero. She, of course, saves him from himself even as he saves her from certain peril. The protagonists develop a sizzling relationship that has both of them growing.”

– Holly, Goodreads

“This excellent brew of romance and intrigue and emotion is also Stevereads best Romance novel of 2015.”

– Stevereads

“This will have you on the edge of your seat not wanting to stop reading. With great characters, drama galore, and twists that will have you glued to each new turn.”

– Tina, Goodreads

“5 stars. Another wonderful novel by Grace Callaway. She never ceases to surprise me with epic romances and mysteries all around.”

– Michelle, Goodreads

“I adore the characters, they are phenomenal. Alaric and Emma’s story is full of drama, humor, suspense, action and smokin’ hot sexy bits. I enjoyed this book and was sorry to come to the end.”

– Deb, Goodreads

“This is one I have read and re-read. Such an interesting, compelling story that brings the reader in from the start and makes you want to see how things work out.”

– MG, Goodreads

“The Duke Who Knew too Much by Grace Callaway, has made the list of being one of my favourite books! The only fault I found with this story, is that it ended. The writing is exemplary, I was on the edge of my seat throughout the entire book….Alaric and Emma are the strong type of characters that completely capture your attention from beginning to end. You can’t help but love them. The sexual tension between them was, wow!”

– Candace, Goodreads

“This book is incredible! Easily in my top five historical romances EVER. I am head over heels for Alaric!”

– Lee, Goodreads

“4 smoldering stars! Murder + Irrevocable sexual tension = My ultimate happiness…. Totally refreshing and hard to put down.”

– Greentea, Goodreads

“This will have you on the edge of your seat not wanting to stop reading. With great characters, drama galore, and twists that will have you glued to each new turn.”

– Tina, Goodreads

“This is my first book from Ms. Callaway. Let me say that I was delightfully entertained….The heroine is no simpering miss who plays any sort of games. I would love to have Alaric for myself! Twists and turns which made for a lot of bedtime reading much to the detriment of my sleep. Would recommend highly if you love Regency.”

– Cynthia, Goodreads

“Amazing, spicy, entertaining, tense story, I loved every second.”

Rady Reads

“WOW!!! This one was really hard to put down! I was riveted to my Kindle until I finished the book. Ms. Callaway knows how to portray characters, details, and SEX!”

– Diane, Goodreads

“A new-to-me author, Grace Callaway captured my reader heart from the first page. Loved this one and will be reading more from Grace.”

– Mrs. N, Goodreads

“I couldn’t ask for more in a romance novel. The plot was fast paced…the romance was front and centre and most of all we have a hero and heroine to root for. The sex was hot, but never overshadowed the story… just how I like my romance novels.”

– Pam, Goodreads

“A true scorcher read. A well written, well plotted out story that will grab the reader’s attention right from the get go and keep them absolutely glued all the way through til the end.”

– Patricia, Goodreads

“Grace is a TRUE writer and the way she has with words just makes me savor her like homemade peach ice cream on a hot summer day.” -Judith, Goodreads

“This was a truly enjoyable romance with a devilish Duke for a hero and a spunky heroine strong enough to tame him. I thoroughly enjoyed the hunt for the murderer and loved the interactions between Alaric and Emma. My heart just went out to Alaric for the terrible childhood he had endured and for his first marriage that scarred him even more, making him feel he was unlovable. Emma was just so wonderful with him and I admired her courage when in danger and in dealing with this wounded and hurting Duke.”

– Joan, Goodreads

“Loved Alaric and Emma — two strong personalities with great appeal. Emma, in particular, was smart and funny and brave, who got herself out of bad situations and didn’t wait to be rescued…(This is R rated, for sure, so if you prefer a less explicit read, go elsewhere!)”

– Andriana, Goodreads

“This book has been one of the best I have read in some time. It has everything that makes a tale excellent; a headstrong lovely heroine, a damaged too serious hero, a rowdy bunch of loving family members that are living and close and then the amazing adventure to peel back like an onion to find the many layers of the plot. This writer to me is in the leagues of Johanna Lindsey, Lisa Kleypas, Julia Quinn and Amanda Quick.”

– Kathie, Amazon

The Details

Published: January 15, 2015
Publisher: Grace Callaway Books
Formats: EbookPaperbackHardcoverAudiobook
ISBN-10: 1939537126 ISBN-13: 978-1939537126 ASIN: B00S36833E
Genres & Tropes
Historical Romance, Regency London, Steamy Romance

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