What if your own family history turns out to be a terrifying lie? Every family has its story, and this one’s deadly. Two sisters. One secret. And a race against time to find the explosive truth in this twisty and captivating thriller by "master of domestic suspense" (Lisa Scottoline) and USA Today bestselling author Hank Phillippi Ryan.

The sole survivors of the fiery plane crash that killed their parents, Eliza Ramsey and her sister Bea share an unbreakable bond. But now, on the eleventh anniversary of the tragedy, Bea fails to retrieve her pre-teen daughter from a sleepover at Eliza’s.

Eliza knows her sister would never leave her precious Piper behind, and fears the worst. But did Bea plan her own disappearance?

The Ramsey’s lives have already crashed and burned once. Now, Eliza discovers she's the only one who can protect her niece from the horrifying legacy of her family’s sinister history. Together, the two must prevent their lives from going up in in flames once again.

A missing mother. Her frightened daughter. And a sister on a desperate search for a happy ending. But someone knows the deadly key to their shared past, and won’t stop until they’ve written a devastating final chapter. Mother, daughter, sister—stranger.

At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.



Praise for this book

“Riveting! I'm a huge fan of Hank Phillippi Ryan, and Mother Daughter Sister Stranger is her best thriller yet, with a chain of events as twisty-turny as a skein of DNA and unearthing long-buried family secrets. Ryan is a master of the domestic thriller, mapping the emotional terrain of the family, as well as a brilliant observer of the ties that bind and stretch, sometimes to the breaking point. I couldn’t put this novel down until after its final shocking twist.” —Lisa Scottoline

“Ryan triumphs with her latest, Mother Daughter Sister Stranger, which is as touching as it is thrilling. With characters that leap from the page and Ryan's masterful plotting and incredible twists, readers will devour this in one sitting!” —Mary Kubica, New York Times bestselling author of She's Not Sorry

“I whipped through Mother Daughter Sister Stranger in one sitting, eager to unearth the secrets so cleverly tucked beneath the surface in this tense, twisty domestic thriller.” —Alafair Burke, New York Times bestselling author of The Note

Praise for All This Could Be Yours

"Engrossing—with a twist that left me reeling!" —Freida McFadden, #1 New York Times bestselling author of The Housemaid

"A wildly entertaining cat-and-mouse thriller! I absolutely loved this!" —Ashley Elston, #1 New York Times bestselling author of First Lie Wins

“Riveting! A deliciously tense read that caught me in its ever-tightening grip from the first page and refused to let go until the last.” —Riley Sager, New York Times bestselling author of The Only One Left

“Clever, thrilling, and impossible to put down. Highly recommend!” —Shari Lapena, internationally bestselling author

"A gripping tale of fame, obsession, and secrets that won't stay buried. A taut, twisty thrill ride—I couldn't turn the pages fast enough!" —Liv Constantine, New York Times bestselling author of The Last Mrs. Parrish

"Ryan has created her best book to date." —Library Journal (starred review)

"...A be-careful-what-you-wish-for tale that delivers on all of its promises. It reads like Harlan Coben or Sandra Brown writing at their level best, as Ryan stakes her claim to the ground roamed by the likes of her literary doppelgänger." —BookTrib

"A supremely accomplished book from a master of suspense." —Crime Reads




About the AuthorUSA Today bestselling author HANK PHILLIPPI RYAN has won five Agatha Awards, five Anthony Awards, the Daphne, the Macavity, and the Mary Higgins Clark Awards. As on-air investigative reporter for Boston’s WHDH-TV, she’s won thirty-seven Emmy Awards and many more journalism honors for her groundbreaking true crime stories. A TedX speaker, she is a past president of national Sisters in Crime, a founder of Mystery Writers of America University, and a board member of International Thriller Writers. Ryan lives in Boston.
Title: Mother Daughter Sister Stranger : A Novel
Author(s): Hank Phillippi Ryan
ISBN: 9781250350039
Copyright 2026
Release Date: September 01, 2026
Publisher: St. Martin's Publishing Group
Countries: United States, Canada | Learn more about available countries
Language: English
Format: None available | Learn More about our supported formats
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