"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

"Tense, twisty, and an emotional gut punch-Caller Unknown is a one-sitting read." - #1 New York Times Bestselling Author Karin Slaughter

"An utterly original kidnap story that throbs with tension-hard to put down." - Shari Lapena, #1 Internationally Bestselling Author of She Didn't See It Coming

"Reader favorite McAllister is back with a pulse-pounding thriller....This is a knockout." - Booklist (starred review)

"Beneath the breathless pacing, McAllister offers a thoughtful meditation on the evolving bond between mother and daughter: what it means to let go and what it costs to hold on too tightly." - Library Journal

"Gillian McAllister has done it again! This is such a clever, tense and twisty book, I inhaled it in under a day. The pacing is perfection and the twist, when it comes, is deeply satisfying, but it is the characters that elevate Gillian's books into the best of the best, and the family dynamics that are so richly described that it's hard to believe they don't continue long after the book ends." - Lisa Jewell, #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

"As moving as it is gripping, this superior thriller is, more than anything, a testament to the power of a mother's love." - Sophie Hannah, internationally bestselling author

"The pacing in this is magnificent, relentlessly pushing this reader forward. I read it in two days. Utterly compelling, grippy mcgripping and so entertaining!" - Liz Nugent, internationally bestselling author of Strange Sally Diamond

"Utterly HOOKED! I was journeying through that desert, living every twist, turn and surprise. Immersive, heart-pounding and astoundingly brilliant." - Lucy Clarke, Sunday Times bestselling author of One of the Girls

"Gillian McAllister [is] one of my favorite authors working in the genre. McAllister is the best at putting her characters in impossible situations and making her readers not only contemplate but feel what it would be like to find themselves in those situations." - Emily Henry, #1 New York Times bestselling author, on Just Another Missing Person

"As a fiction writer myself it's really, really hard to fool me-I always guess the ending of books-but this novel blindsided me with twists and surprises that had me gasping...and with a poignancy about relationships and love that one rarely finds in the genre. A brilliant, brilliant book." - Jodi Picoult, #1 New York Times bestselling author, on Famous Last Words

"A totally fresh read that kept me guessing until the very end!" - Ashley Flowers, #1 New York Times bestselling author of All Good People Here, on Famous Last Words

"Completely addictive. I was as desperate to find out the truth as any of the characters in the book - if not more so!" - Sophie Hannah, internationally bestselling author, on Famous Last Words

"Caller Unknown sets a new standard for modern thrillers - you'll gasp, you'll cry, you'll never forget this story." - Holly Seddon, internationally bestselling author of 59 Minutes

"An incredibly page-turning mystery wrapped up in a thoughtful and thought-provoking exploration of a most unusual kind of grief. Absolutely outstanding, one of my books of the year." - Andrea Mara, author of Someone in the Attic, on Famous Last Words

"A perfectly calibrated mix of the thoughtful characterization that book clubbers will adore and the twist-filled plotting that armchair suspense junkies crave.... A first-rate, fiendishly clever suspense novel." - Library Journal (starred review), on Famous Last Words

"McAllister hits another one out of the park....all the puzzle pieces click together for a satisfying ending." - Booklist (starred review), on Famous Last Words

"A high-concept mash-up of different genres that transcends its wackadoodle premise with an affecting portrayal of a family careening toward crisis." - New York Times on Wrong Place Wrong Time

"A brilliantly genre-bending, mind-twisting answer to the question How far would you go to save your child?" - Ruth Ware, #1 New York Times bestselling author, on Wrong Place Wrong Time

"Daring, inventive, exhilarating, twisted. This is virtuoso storytelling. Please dive in. It's the right place and the right time." - A. J. Finn, #1 New York Times bestselling author, on Wrong Place Wrong Time