It was a typical summer evening at the mall in Rockpoint, not far from Portland, Maine. Three teenage friends waited for the movie to start. A boy flirted with the girls selling sunglasses at a kiosk. Mothers and children shopped together, and the manager at the video-game store tended to his customers. Then the shooters arrived. The chaos and carnage lasted only eight minutes before the killers were taken down. But for those who lived through it, the effects would last forever. In the years that followed, one would dedicate himself to a law enforcement career. Another would close herself off, trying to bury the memory of huddling in a ladies' room, helplessly clutching her cell phone-until she finally found a way to pour the emotions of that night into her art. Some people would devour the details of the tragedy obsessively, while others avoided anything that might trigger flashbacks. Some would strive to exploit the event for fame or profit. But for one person, the shockingly high death toll at the DownEast Mall wasn't high enough, the incalculable sorrow inflicted not enough to satisfy. And as the survivors' lives play out and intertwine in surprising ways, as they heal, find shelter, and rebuild, they will discover another conspirator has been lying in wait ever since that terrible night-and this time, there might be nowhere safe to hide.