Magic Tree House, Castle of Mystery

Jack and Annie are brother and sister. In the first book they found a tree house full of old books, they opened one of dinosaurs and suddenly they were in the dinosaurs world. Now they get a book of knights and they are transported to the medieval era. They have a lot of problems with a castle, a moat with crocodiles and some persons that want to catch them.

My opinion: Interesting. I would read another one.

My rating: 9