A terrifying and unputdownable horror-thriller novel of fiendish puzzles, compelling mysteries and paranoia about an enigmatic hacker, a deadly online game, and a cyber weapon that makes people go insane. Perfect for readers of Paul Tremblay, Neal Stephenson and Mark Z Danielewski's House of Leaves, and the people who just have to know the answer. Alex Webster is an ethical hacker who, like most hackers, prefers questions to answers. So when she.