Buried bones and troublesome treasure

Watts doesn't think he's got what it takes to be a great detective like his parents. So when they jet off on their next case, he decides to take a holiday to Whiskerton Manor instead. But there, Watts befriends Pearl Whiskerton, a curious cat with a nose for mysteries, who persuades him to help her investigate a series of strange goings on at the manor. Who's been upending the precious rose bushes? And where did the amazing dinosaur bones dug up on the grounds come from? It looks like the two things might be connected. But can this dog and cat detective duo solve the mystery?