The #1 New York TimesBestseller!

Everyone has a reason to fear the boy with the gun.

10:00 a.m.
The principal of Opportunity, Alabama's high school finishes her speech, welcoming the entire student body to a new semester and encouraging them to excel and achieve.

10:02 a.m.
The students get up to leave the auditorium for their next class.

10:03
The auditorium doors won't open.

10:05
Someone starts shooting.

Told from four perspectives over the span of 54 harrowing minutes, terror reigns as one student's calculated revenge turns into the ultimate game of survival.

A Buzzfeed Best YA of 2016
#1 Young Adult Debut of 2016
A Publishers WeeklyBestseller
Winter '15 Kids Indie Next List
Goodreads YA Best Books of the Month
Buzzfeed 5 YA Books You Should Be Reading This January
Bustle.com 18 of 2016's Most-Anticipated YA Novels
BookRiot 15 Books out in 2016 You Should Mark Down Now
A Goodreads Choice Award Finalist for Young Adult Fiction