This is a 4-book paperback boxed set of The Magic Tree House Series. It includes books 9-12. This updated version was published in 2017. These are published by Random House Kids. The condition of books varies from very good to like new.

This is a 4-book paperback boxed set of The Magic Tree House Series. It includes books 9-12. This updated version was published in 2017. These are published by Random House Kids. The condition of books varies from very good to like new.