When you're twelve years old and want to travel the world as a reporter for International Schoolgirl magazine you'd better be able to prove you can find a good story at home first. Budding reporter Daisy Cooper finds the perfect school when she wins a place at the brilliant but eccentric Darlington School for Girls. With maths classes that involve poker games, science lectures where pupils fire rockets and biology lessons that take place in a real zoo it is everything she could have wished for. The school is also home to International Schoolgirl, a magazine that sends specially chosen pupils - International Schoolgirls - on adventures across the globe in search of groundbreaking stories. To travel the world as a reporter is something Daisy has always wanted and she dreams of being chosen. Daisy begins an adventure closer to home, however, when she gets lost in the school maze one evening and stumbles across the mysterious Sisters of the Black Night - a hooded secret society that meets under the cover of darkness. Convinced The Sisters are up to no good Daisy enlists the help of her dorm mates - the 88ers - to get to the bottom of the mystery. It's an adventure that takes her through ancient pirate diaries, shark infested tunnels, perilous sword fights and on motorcycle chases through the stormy English countryside. When Daisy finally discovers The Sisters' dark secret she has to make the most difficult choice of her life: having the job she always dreamed of, or doing what's right.