Headmasters behaving badly! When four former headmasters arrive at Highcrest Academy to take part in the school's anniversary celebrations, the students are warned to be on their best behaviour. Unfortunately, no one told the headmasters to stay out of mischief too! Which means Friday Barnes soon has a case to solve. But unravelling the truth isn't easy when the whole school is being forced to eat paleo because the cook is on a diet; her best friend's...

School camp . . . what could possibly go wrong? Friday Barnes is forced to face her biggest fear - her own emotions! She must wave goodbye to Ian as he takes off to join his father in the Cayman Islands. But when your dad is a white-collar criminal, family reunions never go to plan. Ian is kidnapped en route and it's up to Friday to rescue him. On her return to school, the Headmaster has a treat in store - a four-week camp for students to learn wilderness...