I received a free copy of this book in exchange for a fair and honest review. All opinions are my own.
A karmic vigilante finds herself the prime suspect in a murder investigation and must unravel her past lives and the dark secrets hidden within in author Kristen Martin’s “All We Keep Hidden.”
The Synopsis
A gripping urban fantasy from International Amazon Bestselling Author Kristen Martin where magic collides with modern life, unleashing danger, destiny, and an anti-heroine you won’t forget.

What if the concept of karma wasn’t just wishful thinking, but an actual duty that’s guaranteed to be fulfilled?
For 30-year-old Maren Cordeau, it is. Having been through multiple incarnations and a daunting number of past lives, she’s finally landed among the ranks of the Noires—karmic vigilantes who carry out the eternal sentences of those who have ultimately chosen to “sell their soul”, be it for riches, fame, power, or something much, much darker. It’s no surprise that invoking nightmares to carry out said sentences has become one of her favorite pastimes… How could it not when she’s exacting justice for the innocent and defenseless?
Such a dangerous role requires the protection of a Sigard, assigned to all Noires at the time of incarnation. It’s a shame it’s Brant Colborn, her rival from previous lifetimes; but, regardless of their blatant animosity toward one another, they always find a way to work together—and actually grow to do a little more than tolerate each other this time around. But when Maren receives her next assignment, a trip into the underbelly of the shopping district to gather supplies turns into a nightmare of her own—her go-to shopkeeper, the Elder Witch of a coven, turns up murdered, in which she’s the number one suspect.
With so many things working against her, Maren can’t help but wonder if this is her own twisted rendition of karma playing itself out. But, as she revisits past lifetimes, what she discovers is much more than she’d bargained for… and could alter the very fabric of reality of years past and subsequent years to come.
The Review
This has been one of my anticipated reads of 2025, and I was not disappointed. The first thing that strikes the reader when delving into this narrative is just how atmospheric and haunting the world the author has built is, while also bringing a great sense of imagery to the writing itself, transporting readers into each visceral scene. There was one scene that offhandedly described a character’s movements and actions in a manner reminiscent of those of Harley Quinn from DC Comics. Immediately, I was able to picture the scene in my mind, and this happened frequently throughout the novel.
The character development and rich mythology were the standout features of this story. The chemistry between Brant and Maren both created the heat one would expect from an adult dark fantasy novel, while also adding to the tension and tone of the narrative that hangs in the air as Maren explores how deep their connection goes. While I love the exploration of various gods and magic from different cultures and mythologies, what stood out to me was the metaphysical aspect of the story, particularly the concept of past lives and the idea that we shape reality at all times. This thought process has been a driving force in much of my paranormal and metaphysical research, and seeing it so effortlessly tied into this plot and explored with nuance and care was a great literary device the author implemented in this work.
The Verdict
With reflections of humor in the dialogue, emotional connection with the characters, and an outstanding balance of mystery, intrigue, and passion, author Kristen Martin’s “All We Keep Hidden” is a must-read dark fantasy novel that fits well into the upcoming spooky season, and a contender for Best Dark Fantasy Novel of 2025! The protagonist and the mythos the author creates were intriguing, and I instantly became invested in the story. The twists that unfold in the novel’s climax, along with the open ending of the story, bring both closure to the narrative and leave enough room for readers to crave more of these incredible characters and this world overall. If you haven’t already, be sure to grab your copy on October 7, 2025, or preorder it today!
Rating: 10/10
About the Author

KRISTEN MARTIN is the International Amazon Bestselling Indie Author of THE ALPHA DRIVE trilogy and SHADOW CROWN series, the standalone novel BEYOND THE STARS AND SHADOWS, as well as nonfiction works, SOULFLOW and BE YOUR OWN #GOALS. She is also a writing coach, a YouTuber, a podcaster, and a full-time creative entrepreneur. Living in Southeast Texas with her husband and their six kids, she loves all things young adult, science fiction, and fantasy.
Kristen prides herself on helping aspiring authors reach their dreams of publication through her coaching program, Valiance. She loves connecting with other writers and readers, so be sure to reach out!
Stay connected on:
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https://www.kristenmartinbooks.com/
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