Tree house mystery

The Alden children are helping their neighbors build a tree house. From the tree house, the children discover they can see into the attic of the house next door . . . and they notice a window that not even their neighbors know about! Does the old house have a secret?

Bibliographic Details
Main Author: Warner, Gertrude Chandler
Format: EAUDIO
Other Format: EBOOK BOOK
Language:ENGLISH
Published: Oasis Audio 2012
Series:Boxcar Children
Subjects: