The Disreputable History of Frankie Landau-Banks by E. Lockhart

Frankie (Frances Rose Landau-Banks) attends exclusive Alabaster Preparatory Academy, where she is a sophomore. During the summer she meets a young man named Alpha at the beach. When she arrives at school, she receiving attention from Matthew Livingston, one of the most popular guys on campus. She also finds out Alpha is attending school there, too, and is a good friend of Matthew's. Matthew keeps disappearing at weird times, so one night she follows him. She finds out that Alpha and Matthew are the leaders of a secret society called The Loyal Order of the Bassett Hounds. She wants to be included, but the society is only for boys. When they are planning their Halloween pranks, Frankie sees an opportunity to show them what she can do. She creates a fake email address in Alpha's name and plans and executes a great Halloween prank. Instead of figuring out that Frankie thought up the prank, Alpha takes the credit for it. Frankie decides she is going to really show them her stuff and pulls off one prank after another, getting the boys to do all of the work. Little does she realize that her actions may lead to Alpha getting expelled.