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What She Left Behind

Published by Rising Action
Distributed by Simon & Schuster

About The Book

For fans of Mary Kubica and Colleen Hoover, What She Left Behind is a gripping psychological thriller where one woman uncovers dark secrets hidden in a tragic past.

Truth hides where the past refuses to stay buried.

Recently fired and adrift, Charlotte Boyd agrees to oversee renovations on her parents’ small-town summer home that holds a tragic past. After discovering an enthralling diary hidden amidst junk the previous owners left behind, Charlotte connects with the author—a troubled teen named Lark Peters who died by suicide at the house sixteen years ago.

When an unsettling incident forces Charlotte to seek refuge at the local pub, regulars, including the police, warn her of Lark’s older brother, Darryl, who has become a recluse since Lark’s death, and may know more than he’s letting on. But Charlotte sees a side of Darryl others don’t, being an outsider herself.

In a search to uncover the truth, Charlotte must question those closest to Lark and reconcile her own past trauma. Because if Lark was actually murdered, then whoever is responsible might be lurking in Charlotte’s own backyard.

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 (August 12, 2025)
  • Length: 368 pages
  • ISBN13: 9781990253683

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Raves and Reviews

“Set in a small town where everyone knows everyone else (or do they), WHAT SHE LEFT BEHIND, weaves plot twists, dual timelines, family dysfunction, and reckoning with the secrets of a very dark past, all at an absolute breakneck pace.”

– Ashley Tate, #1 national bestselling author of Twenty-Seven Minutes

“Brianne Sommerville has done it again! WHAT SHE LEFT BEHIND is a gripping thriller with characters to care about and a story that pulls you in and won't let go until the very end. Sommerville has created a setting that transports you with its quaintness while at the same time has you questioning everyone in it—who can be trusted, who has done the unthinkable and who will stop at nothing to keep their secrets.”

– Jessica Hamilton, author of What You Never Know and Don’t You Dare

“In her signature enticing voice, Sommerville weaves a haunting, heart-pounding mystery where past and present blur, and nothing is as it seems. In an eerie, secret-filled small town, a murderer lurks in plain sight. Spooky, gripping, and unpredictable, this story will keep you questioning the past as the present sneaks up on you.”

– Maggie Giles, author of The Art of Murder

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More books from this author: Brianne Sommerville