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About The Book

For fans of Ashley Audrain and Stacey Willingham, a gripping domestic thriller exploring postpartum depression in a suburban nightmare—ideal for those intrigued by psychological depth and real-life suspense.

Who can you trust when you can’t trust yourself?

The pregnancy podcasts warned Joanna Baker about the baby blues, but when a near-fatal mistake places the first-time mom under the watchful eye of Child Protective Services, she receives a serious diagnosis.

Postpartum depression. Jo hears the words, yet they don’t make sense. Nothing does. Her blackouts are increasing, and she can’t recall events she’s been accused of.

As she fights to keep her daughter, she discovers cracks in her neighborhood, family, and her own home. With the support of her sisters, she attempts to piece together her traumatic past and uncover who is truly in control.

Jo must battle her faltering mind to save what’s most important—her daughter.

About The Author

Brianne Sommerville is a Canadian author who writes thrillers. She studied English literature and theatre before entering the world of public relations and marketing. She lives in Toronto with her partner and three littles under five and knows every episode of Peppa Pig by heart.

Product Details

  • Publisher: Rising Action (March 19, 2025)
  • Length: 336 pages
  • ISBN13: 9781990253690

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Raves and Reviews

"Debut author Brianne Sommervile makes a splash in the thriller genre with her captivating, compelling IF I LOSE HER. I flew through this riveting, suspenseful story of a new mother whose past traumas might be unraveling her current reality, or someone else could be pulling the strings. As the list of suspects grows, Sommerville beautifully balances a woman trying to figure out who's putting her child in danger with a deep, raw look at motherhood, marriage, and family that skyrockets in intensity on every new page. A fantastic read!"

– Samantha M. Bailey, USA TODAY and #1 national bestselling author of A Friend in the Dark 

"Sommerville captures the bone-deep fears of new motherhood with raw and poignant accuracy. Using the landscape of a mother’s sleepless nights and pressure for perfection coupled with a strained marriage and her own dysfunctional family past to create an edge of your seat thriller in which everyone is a threat to her child, possibly even, herself."

– Jessica Hamilton, Bestselling author of What You Never Knew

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