Marnie is tremendously wealthy and tremendously alone. The 16-year-old daughter of a superstar who was killed years ago in a plane crash, Marnie refuses to take part in her oppressive boarding-school community. And she has no interest in living with her guardian, a well-meaning but stiff man named Max. She would rather burrow away in the dark, comforting world of her favorite Internet adventure game. Especially now that she has started chatting online with one of the other players, an intriguing rogue who calls himself the Elf.

But closing herself off from the people around her doesn’t mean she’s safe, as Marnie soon discovers. Kidnapped and locked inside an empty basement cell, Marnie is forced to confront painful truths about herself and her famous mother as she desperately tries to escape her jailer. Oh, how little her cyber-adventure game has prepared her for this real-life dungeon!