16-year-old Marnie Skyedottir is tremendously wealthy and totally alone. The daughter of a superstar who died years ago, Marnie refuses to take part in her oppressive boarding-school community. She would rather burrow away in the dark, comforting world of her favourite 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 everyone around her doesn't mean that she's safe, as Marnie soon discovers. Kidnapped, 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! And how she longs for just one more battle of wits with her mischievous Elf…