"Outstanding. . . As grippingly suspenseful as the plot is, Sierra's first outing boasts other strengths just as noteworthy, from its transportingly eerie setting to its indelible main character, a petite, prototypical 'good girl' pushed to the brink by years of being underestimated, patronized, and disbelieved by men with power. The icing on the cake is the splendid ending, which feels both surprising and inevitable."
--Publishers Weekly (starred review)

"Straddling the line between psychological thriller and domestic horror, Sierra's auspicious debut immediately plunges readers headlong into its unnamed protagonist's waking nightmare. . . tense, emotionally resonant . . . Well-timed flashbacks add context and poignancy. Fiercely feminist and viscerally terrifying."
--Kirkus (starred review)

"Nightmarish--you won't be able to look away."
--Shari Lapena, New York Times bestselling author of The Couple Next Door

"If Stephen King and Dean Koontz co-wrote a thriller, the result would be a lot like Nightwatching. Eerily atmospheric, pulse-pounding and unputdownable, this book will keep you up at night."
--Sarah Pekkanen, New York Times bestselling author of Gone Tonight

"Very few books are as sharp, clever, and utterly terrifying as Nightwatching. Read at your own risk."
--Chris Whitaker, New York Times bestselling author of We Begin at the End

"I loved Nightwatching. It is the most gripping thriller I have ever read."
--Gillian McAllister, New York Times bestselling author of Wrong Place Wrong Time

"I am trying to think of a book that has grabbed me by the throat more quickly. None comes to mind."
--Linwood Barclay, New York Times bestselling author of The Lie Maker

"The most gripping psychological thriller I've ever read. Heart-thumping and mesmerizing, a masterclass in tension and terror, it's also a creative, thoughtful portrait of maternal fear and love--a must read."
--Ashley Audrain, New York Times bestselling author of The Push

"Nightwatching is an intense and claustrophobic thriller--it's terrifying and unputdownable."
--Karin Slaughter, New York Times and #1 international bestselling author of After That Night

"Few novels have affected me like this one. Nightwatching is acutely frightening and beautifully written, as tender as it is terrifying. I can't remember rooting for a character quite so hard!"
--Abigail Dean, New York Times bestselling author of Girl A

"Tracy Sierra is an impressive new talent. Nightwatching is riveting, by turns a chilling account of a horrifying ordeal and a whip-smart snapshot of marriage, motherhood, and the female experience in a man's world. Psychological terror at its finest."
--Gilly Macmillan, New York Times bestselling author of The Manor House

"Breathtakingly superb on every level. A proper tour de force that delivers the highest possible grip factor from first word to last, and a more satisfying resolution than I dared to hope for."
--Sophie Hannah, New York Times bestselling author of The Couple at the Table

"Nightwatching is at once a terrifying descent into my deepest maternal fears, a blistering social critique, and an elegiac portrait of what it means--and what it takes--to endure. One of the most haunting, gripping novels I've read in a long time."
--Katie Gutierrez, national bestselling author of More Than You'll Ever Know

"So tense, so thought-provoking.The definition of 'can't put down.'"
--Araminta Hall, author of Imperfect Women