It's a special week at Camp Half-Blood. It's the week of the Prank Wars! The demigods at camp aren't going to hold back on their pranks, so watch out, or you might be next!

London, a perfectly normal girl, has just moved to New York from Australia. Her mum decided to send her to Yancy Academy, a boarding school, because she is too busy with her work to look after London. But there is something unusual about her school. Monsters.....