

Publication Date: July 1, 2026
We’re both in love. We’re both lying.
Pulling my husband’s favorite lasagna from the oven, I see he’s glued to his phone again. He shifts his chair, hiding his screen from my view.
Without looking up, he asks about work and I quickly come up with a story about my day. Of course, I’m lying. I never went to work. And when I hear the ping of my email, fear and guilt make my face flush pink.
I know what you did. I’m going to tell.
I pour another glass of ice-cold white wine and I look at Nathan, so blissfully unaware of how close we are to our perfect life being torn apart. And I know in that moment I will risk everything to keep the secret in our marriage…
Readers who love The Housemaid, The Perfect Marriage and The Girl on the Train will absolutely devour this twisty psychological thriller from Cathryn Grant.

After a breach in trust, Avery and Nathan pledge to be honest with each other, only to have a voice from the past threaten their bond.
Author Cathryn Grant uses past deception as the basis for a psychological thriller in The Secret in Our Marriage. Although the specific details are placed like breadcrumbs, it is clear that blackmail attempts by a former high school bestie are problematic.
Rather than tell Nathan, Avery practically has an emotional meltdown as her work and home life threaten to implode. Later, though, it begins to make more sense why she opted to keep the struggle to herself.
Little does she know that Nathan has worries of his own. When the dust finally settles, readers discover an unexpected twist questioning how well they really knew Avery and Nathan.
The Secret in Our Marriage may seem relatively simplistic until it evolves into a masterful game of deceit with a few bodies along the way.

Cathryn is the author of over thirty psychological suspense novels. The things that cause torment in real life—obsession and revenge, guilt and envy and longing—are endlessly fascinating in fiction, and she never grows tired of writing stories about characters struggling to overcome the worst. Cathryn also writes ghost stories because… who knows what lies beyond our senses.
When she’s not writing, she’s usually reading, walking on the beach, or playing golf, going way out of her way to avoid hitting her ball in the sand or the water. She lives on the Central California Coast with her husband and their cat, Cleopatra.
















