This was bought for my Pirate-Mad twins who are 4 years old and was new for holiday. 3 weeks on it is still the favourite and has to be read at least twice every night with a good old sing-song in the middle! They love this book so much they recite it almost word for word during the day as they role play it and they are even looking forward to going and seeing some dinosaurs at the museum due to the dinosaur connection too. THis book starts with Flin and his friends on a school trip to the museum when they discover the treasure of a famous pirate has disappeared. As they follow the clues they go through the cupboard and discover a land ruled by Pirates and Pirate Dinosaurs. A perfect story book that is fun to read for parents and kids a like. It has enough content to not get boring after some time and can even be used by budding 'actors' (dads I mean!) who may want to really get into characthly. Highly recommend.