From the bestselling thriller writer comes an emotionally gripping novel about a young woman who plans to do the unthinkable in order to change the world.You—all of you—are sleepwalking through global catastrophe. And I intend to wake you up. What Emma Caroline Blake has planned at New Hampshire’s Ridgemont Academy is shocking. Her school blames a heartbreaking tragedy in her family. Her best friends point to her most recent social media. Her teachers, even her father, say it’s a drastic cry for help. But Emma doesn’t want help. She wants to make a difference. Not tomorrow. Today. Now. She’s going to walk through fire to change the world.