The Famous Five are having fun camping near the home of a famous scientist. But they might have known there'd be a mystery to solve. When the scientist's important research papers go missing, he needs the gang's help to get them back! But how can the Five work out who took them?
The twenty-first story in the Famous Five saga sees Julian, Dick, Anne and George on a train, approaching Kirrin, where they are to spend the Easter holidays. Amazingly (unless I missed something in an earlier book), Timmy does not now stay with George at her school. When did this happen? Would George leave Timmy at Kirrin whilst she was at school? Curious. However, there is no-one to meet them, not even Tim. Convinced something is wrong, George rushes poste-haste to Kirrin Cottage, in a taxi.