When Elizabeth Knight meets a boy with a peculiar book on the streets near her apartment, she gets a little worried. When she wakes up the next morning in a totally different world, she starts to question her sanity.Elizabeth is whisked away to Aon, a kingdom of danger and mystery, with Edward, the boy from the streets. Turns out, he happens to be the prince. And that makes her a target by association.Before night falls, the peculiar book is hers, she's being called the 'Keeper' and she has a new enemy: the dark, hooded figure called the Night Rider, who wants nothing more than absolute power. Now, the only things in his way are Elizabeth, her book, and the boy from a secret place.As impossible secrets unravel, Elizabeth is left with the greatest challenge of her life. Can she protect Aon and the people she cares about despite the danger that awaits her? Elizabeth is faced with saving the kingdom and protecting herself, knowing that one accident could send her spinning through the darkness, leaving Aon behind forever.