This is a full cast dramatisation of the classic children' book. Pauline, Petrova and Posy Fossil are not really sisters - even their surname is invented since Great Uncle Matthew (GUM) adopted each of them on his various fossil-hunting trips. When the trio decide to 'put our name in the history books because it's our very own', each Fossil uses her individual talents to achieve their joint aim in this captivating story, now a modern children's classic.