*A New York Times Bestseller* "Are you paying attention? You'll need to be; this thriller will test your brain with its reverse chronological structure, and it's a page-turner to boot." -Elle

*A New York Times Bestseller*

"Are you paying attention? You'll need to be; this thriller will test your brain with its reverse chronological structure, and it's a page-turner to boot." -Elle

“Fans of Gillian Flynn, Chevy Stevens, and Jennifer McMahon will devour this relentlessly paced and deftly plotted thriller...An irresistible and riveting page-turner." -Publishers Weekly

“Fans of Gillian Flynn, Chevy Stevens, and Jennifer McMahon will devour this relentlessly paced and deftly plotted thriller...An irresistible and riveting page-turner." -Publishers Weekly

"YA suspense at its very best: this psychological thriller will blow readers’ minds." -School Library Journal

"YA suspense at its very best: this psychological thriller will blow readers’ minds." -School Library Journal

"A haunting meditation on what it means to be human and to truly live." -Publishers Weekly, starred review

"A haunting meditation on what it means to be human and to truly live." -Publishers Weekly, starred review

"The reader will fly through the pages" -Booklist

"The reader will fly through the pages" -Booklist

"A thought-provoking, action-packed novel" -School Library Journal

"A thought-provoking, action-packed novel" -School Library Journal

"Fresh, addicting, and smart." -a VOYA Perfect Ten

"Fresh, addicting, and smart." -a VOYA Perfect Ten