Glimpse is the first book in the Retroact Saga written by Stacey Wallace that tells the story of two young lovers. Zellie and Avery are two lovers who get the chance to know each other through family friendship and it was a birthday party. But, things get quite frightening when Zellie gets a frightening vision while they are dancing for the first time. Then, story begins to get a little complex and they are trying their their best to change their fortune.