I found many eight to tens who liked the snappy, fast-moving, writing in the two previous 'Cam' books (Mysteries of the Stolen Diamonds ... and the U.F.O.). This one should appeal just as well. The likeable heroine with the photographic memory and her friend Eric track down the thief of the Coelophysis' bones from the local museum. A good chase, chirpy word-play, and some natural history thrown in. A brisk plot, ripe for class serialisation.
Links:
[1] http://ww.booksforkeeps.co.uk/childrens-books/cam-jansen-and-the-mystery-of-the-dinosaur-bones
[2] http://ww.booksforkeeps.co.uk/issue/19
[3] http://ww.booksforkeeps.co.uk/member/colin-mills