Charlie was an average girl who hated being average. But that all changed the summer she turned 15. The holidays had rolled around and she was forced to visit her grandparents, which sounds innocent enough, until she disappeared. She returns two years later not knowing that time had lapsed in her absence, with no memories of what had happened, looking the same as the day she left. Things get mighty confused. There is talk of a world called Argonia that she has never heard of. An evil man seeking her out that stole her memories and still keeps them in a crystal goblet. Then a prophecy that revolves around saving the world. While everything seems to involve an elaborate mirror that leads to a mystery world. When a gorgeous guy named Caden appears on the scene, he only has eyes for her, and seems to hold the answer to her mysteries. Can he help her solve the riddle of her life before it's too late? And could she really be the saviour of a world she had never even heard of?

Iridesca is a quiet, shy girl: she's homeschooled, lives in a small town in the south and hardly ever leaves her room. The only thing that keeps her sane is music; playing the piano and singing is what she loves. The only connection to the outside world is through the internet, where she posts videos of her singing. She's a YouTube legend for two reasons: One—she has an incredible voice; and two—no one knows who she is. They don’t know her name, not even what she looks like, as every video she posts, only her chest-down is visible. She’s just known as The Cover Girl, and she’d like to keep it that way. But when her angelic voice steals the heart of a certain British boy band member, he starts to get curious and begins putting the puzzle pieces together. He’s determined to discover who The Cover Girl really is and hopefully sweep her off her feet like she did him.