Four brave siblings were searching for a home – and found a life of adventure! 14 Join the Boxcar Children as they investigate the mystery of a secret window in this illustrated chapter book series beloved by generations of readers. A family moves into the house next door! The Boxcar Children decide to make friends with their new neighbors by building a tree house with them. In the process, they notice a window in their neighbor's house that nobody knows about. Does the old home have a secret? 15 Join the Boxcar Children as they investigate the mystery of an abandoned farmhouse in this illustrated chapter book series beloved by generations of readers. The Boxcar Children go on an overnight bicycle trip to Aunt Jane's! But when a rainstorm hits, they are forced to take shelter in an abandoned farmhouse. As the children wait out the storm, a most unusual mystery finds them like new condition Tight binding No page marks Please look at photos carefully and ask questions before purchase, happy to help! Ships fast Nonsmoking home