راز موسیقی دزدیده‌شده: مجموعه بچه‌های واگن، جلد ۴۵

When a famous orchestra comes to the Boxcar children's town they are delighted, especially when they find an genuine Mozart score and discover how it originally disappeared. The Alden children are thrilled when a famous orchestra comes to their town to perform, and when an original Mozart score turns up missing, they solve the mystery of its disappearance. A famous orchestra visits Greenfield and brings an original piece of music by Mozart! But when the music goes missing, the Aldens must find out if it was misplaced...or stolen.