Terror 404 — Rosie Claverton

Terror 404 is the fourth in Rosie Claverton's Amy Lane mysteries series. Amy Lane, grey-hat agoraphobic hacker, is isolated in a private psychiatric hospital, away from friends and any connection to the web. Jason, her trusted companion, is in hiding and on the run. When a fellow patient is mysteriously murdered, Amy and Jason must find a way to join forces, solve the murder and save themselves.