After ten years of living on an isolated, tech-free ranch with her mother, sixteen-year-old Hedda is going back to the world of the Glare-her word for cell phones, computers, and tablets. Hedda was taught to be afraid of technology. But now she's going to stay with her dad in California and she's finally ready to be normal. She's not going to go "off-kilter," like her mom says she did when she was just a little kid. Once she arrives, Hedda finally feels like she's in control. Never mind the terrifying nightmares and visions that start trickling back-they're not real. Then Hedda rediscovers the Glare-a first-person shooter game from the dark web that scared her when she was younger. They say if you die thirteen times on level thirteen, you die in real life. But as Hedda starts playing the "death game" she realizes the truth behind her nightmares is even more twisted than she could have imagined.