Rollercoasters: Wild Boy by Rob Lloyd Jones

Wild Boy has been covered in hair since birth and condemned to life in a travelling freak show. Excluded from society, he takes refuge in watching people at the fair - and develops a talent for observation and detection. But when there's a murder, suspicion turns to Wild Boy, so he and the feisty acrobat Clarissa Everett find themselves on the run...
Binding: Paperback / softback