hidden key of brook sumner

Welcome to the Takeover + Review Blitz for The Hidden Key of Brooke Sumner by Susan L. Tuttle, hosted by JustRead Publicity Tours!

About the Book

Title: The Hidden Key of Brooke Sumner 

Series: Treasures of Halstead Manor #3 

Author: Susan L. Tuttle 

Publisher: Kregel Publications 

Release Date: March 24, 2026 

Genre: Mystery & Suspense / Romance 

Will the key unlock more than a vault filled with treasure? 

Brooke Sumner has been carefully avoiding Storm Whitlock ever since he betrayed her trust. When he joins Caspar's mysterious treasure-hunting group, she steps away to focus on her antique shop and keep herself busy. Then Caspar invites her back for one final assignment, and Brooke is torn. Returning to Halstead Manor to help the team find the second half of a key is intriguing. It also means she'd be working with Storm. But she doesn't trust his motives, so she reluctantly rejoins to keep him in check. As they dive into their expedition, Brooke finds her heart softening toward those she'd once held at arm's length. And is it possible she misunderstood Storm's betrayal of their friendship? 

"In this friends-to-more romance, we get to see the beauty of being known, being loved, and finding the people who want to walk alongside us." —Toni Shiloh, Christy Award-winning author

My Thoughts

This book series has everything I love the most in books: treasure hunt stories, found family, puzzles, trauma past, slow burn, tear jerking moments. I enjoyed this book so much. Brooke Sumner grew up in foster care, and from an early age it was along side her best friend Storm. Currently, she and Storm aren't really on speaking terms any more, and she had decided to separate from her current group of friends as well. But circumstances bring them all together again for another grand and risky adventure to locate amazing, historical, rare artwork.  After finding a lost diamond and a rare manuscript together, the group work together while Brooke faces an inner battle for a sense of identity, belonging and peace.  In the end, she and the whole team find even more than they hoped.  

I love these characters. The shared trauma and strong friendship that link Brooks and Storm lend to amazing tension and a strong foundation for friends to enemies to more.  The clue following, puzzle solving plot is unique and well-paced, and I enjoyed the tie to history and well known art.  The fact that the story revolved around a real missing piece of art makes it even more interesting.  

PURCHASE LINKS: Goodreads | Kregel Publications | Amazon | Barnes & Noble | Christianbook | BookBub | Bookshop

More Books from this Series:

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About the Author

Susan L. Tuttle is a pastor’s wife, mom, and the director of women’s ministry at her church near Grand Rapids, Michigan. Her previous writing includes The Rare Jewel of Everleigh Wheaton, The Novel Adventures of Natalie Daughtry, the Along Came Love series, and the Carol Award–finalist Love You, Truly.

Connect with Susan by visiting SusanLTuttle.com to follow her on social media or subscribe to email newsletter updates.

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Tour Giveaway

(1) winner will receive a copy of The Hidden Key of Brooke Sumner and $20 Amazon gift card!

Be sure to check out each stop on the tour for more chances to win. Full tour schedule linked below. Giveaway began at midnight April 15, 2026 and lasts through 11:59 PM EST on April 22, 2026. Winner will be notified within 2 weeks of close of the giveaway and given 48 hours to respond or risk forfeiture of prize. US only. Void where prohibited by law or logistics.

Giveaway is subject to the policies found here.

Enter Giveaway

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Follow along at JustRead Tours for a full list of stops!