1 favourite book, Billy?

Patty: What's your favourite book, Billy? Billy: My favourite book is Harry Potter and the Philosopher's Stone. Patty: What do you think of adventure stories? Billy: I think they're great! Patty: In my opinion, adventure stories are great about you, Patty? Billy: I think so, funny stories are the best better than adventure stories. Patty: Well, Harry Potter books are adventure stories and they are funny too. You're right.