Her lastest Book is "Sudden Death"
Death. There's An App For That. When James’ roommate vanishes, he begins to investigate. After finding his friend’s phone, frozen, locked in a mysterious game loop, James elicits the help of fellow students to uncover the mystery.
They soon discover that this is no regular game. What they find is more than a game. Much more Whatever you do, don't click ‘download now’, or you’ll be next.