Nora is excited to be attending maker camp at Winthrop Academy. After hoping to find solace among fellow nerds, she is disappointed to find catty competitors instead, including ringleader Eleanor Winthrop, who dubs Nora "Lowercase," because there can't be two Eleanors. To frustrate matters further, Eleanor's boyfriend, Maddox, shows interest in Nora and recruits her to help with their Maker Fair project update to the InstaLove app that will allow players to add augmented reality features to the game. When Eleanor winds up dead, the evidence points to Nora, and she must prove her innocence t instead she gets pulled into a web of secrets. Why was Maddox pretending to be Eleanor's boyfriend even though they broke up? Was Eleanor's death an accident or murder? Geiger's thriller has an interesting coding focus that ties into the big mystery. While the first two acts, full of mean-girl drama, may be a slog for some, the epic murder-mystery finale is well worth the wait.