What happens when star detectives, Lisa and Otoha, who happen to be school students, take a trip to scenic Cyprus for a History project? Well, they create history as they try to solve a mystery! From doing a project on a diadem that is rumoured to belong to Queen Caterina Cornaro to being blamed as one of the suspects responsible for its disappearance, the girls have their work cut out for them. Will they find The Lost Diadem and prove their innocence or will they lose hope and give in? There’s only one way to find out….