"McMahon expertly ratchets up the suspense, but it’s her full-blooded characters that make this thriller stand out from the serial killer pack.”
"Haunting and harrowing, The One I Left Behind offers enthralling suspense but also so much more: a richly poignant tale of the families we're born into and the ones we build ourselves."
- Megan Abbott, author of Dare Me
"Grippingly plotted, this intricate, character-driven story seamlessly shifts time as McMahon explores such favorite themes as dark familial secrets, flawed relationships, and the potentially destructive power of sex, all anchored in a vividly evoked suburban Connecticut landscape. You won’t soon forget Reggie, fierce yet fragile, but likely to stick with you even longer is the central conundrum of the extent to which our pasts enslave us and how much we can set ourselves free."
- Publishers Weekly (starred review)
"McMahon scores a solid touchdown in this creepy but engrossing thriller.... Readers will find themselves unable to turn the pages fast enough in this perfectly penned thriller."
- Kirkus (starred review)