Caller Unknown: A Read with Jenna Pick
by Gillian McAllister
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"An unputdownable adventure that was both heartwarming and thrilling! Everything I've come to expect from Gillian McAllister!" --Freida McFadden, #1 New York Times Bestselling Author
"Only a Gillian McAllister thriller can make your heart race and then your heart melt from one page to the next! I'm a devoted fan!" --Liane Moriarty, #1 New York Times bestselling author
How far would you go to rescue your child? A mother races against the clock--and finds herself on the wrong side of the law--in a desperate fight to save her teenage daughter in this pulse-pounding thriller from the author of Reese's Book Club Pick and New York Times bestseller Wrong Place Wrong Time.
There is nothing that Simone won't do for her daughter, Lucy. The two have always been close, and with Lucy about to leave home for university, they depart the UK for a vacation to Texas to spend some quality time together. But when Simone awakens on their first morning in the desert, Lucy is gone, missing from their rental cabin. In her place is a cell phone, and a voice on the other line issues a shocking ransom demand. Don't tell the police. Come to this location. And be prepared to do a deal...
Though Simone's husband urges her to bring in the authorities for help, she knows she can't take any chances. The kidnappers might kill Lucy if she tells anyone. No mother would take that risk. Instead, that night, she drives to the isolated meet-up.
What she finds there changes everything. The mysterious kidnapper doesn't want money. They want Simone to do something. The unthinkable.
A catastrophic chain of events is set in motion, with chilling consequences that extend beyond Simone and her family. What follows is a heart-pounding journey through the small towns and punishing deserts of remote Texas, in which Simone's courage--and morality--is pushed to the brink as she discovers what it truly means to be a mother.
Unbearably tense, compassionately told, and full of well-crafted moral dilemmas, Caller Unknown proves once again why Gillian McAllister's thrillers are "the best of the best" (Lisa Jewell).
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Book Details
- ISBN
- 9780063338470
- Binding
- Hardcover
- Authors
- Gillian McAllister
- Publisher
- William Morrow & Company
- Published Date
- May 5, 2026
- Language
- English
- Pages
- 352
- Physical Info
- 1.35 in H x 9.14 in L x 6.07 in W

I gave 3 copies as gifts and then got to borrow/read myself and we all loved it! If you've been to Big Bend and Terlingua, it nails it.
Caller Unknown by Gillian McAllister is a highly recommended thriller following a mother and daughter during a series of disturbing events.Simone arrives from the UK to Fort Davis in the Big Bend region of Texas where Lucy has been attending a vocal workshop. The plan is to spend time with her daughter Lucy on an enjoyable vacation before Lucy leaves home for the Royal Academy of Dramatic Art, RADA. Simone awakens the morning after their first night in the cabin they rented and finds all her luggage there but Lucy gone. Then she receives a message, caller unknown, on a cell phone left in Lucy's bed. She is instructed to not tell the police, go to a specific location, and be prepared to follow instructions if she wants to see her daughter again. She does receive a video with proof Lucy's still alive.Simone calls her husband Damien who encourages her to call the police, but she declines, worried about Lucy's safety. Damien says he will be on a flight to the USA and Simone proceeds to follow the kidnapper's instructions. Instead of a ransom demand, Simone is given a task. Simone follows the instructions and this sets into motion a distressing encounter, morality choices, an arduous journey, and intense cat and mouse game.This well-written thriller starts out at a sweeping, intense, nail-biting pace and then slows down as the situation changes. The sources threatening Simone and Lucy include humans but also the harsh environment as they are on the run. Along with the thriller plot line, the narrative also explores the close relationship/connection between mothers and daughters. The middle part of the novel becomes a thoughtful character study and examination of familiar relationships. The ending explodes back into action with surprising developments and twists. Take note that there are several times I had to set disbelief aside while reading.The characters are all well-developed and intimately portrayed as complex individuals with strengths and weaknesses. The exploration of the connection between mothers and daughters, and the sacrifices mothers will make for their children is especially well done and compassionately depicted through thoughts and deeds throughout the narrative.Caller Unknown is a great choice for those who enjoy thrillers which feature a mother and daughter encountering a tension-packed situation. Thanks to William Morrow for providing me with an advance reader's copy via Edelweiss. My review is voluntary and expresses my honest opinion.
Meh. Interesting premise but unlikely series of events. The mom was somehow very unlikeable and made many stupid decisions. The daughter was just irritating and the dad’s character not well developed. I ended up skimming the last quarter of the book. Kind of reminded me of a road runner cartoon how they managed to elude both law enforcement and the bad guys.
This book was okay for me. Moved a little slow and was not one of my favorites. But that’s not to say someone else may not be able to put it down. Jenna loved it so that counts for something.
I love good mystery books and this is one you cannot put down. Very inciting
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