The Niagara Falls Mystery (The Boxcar Children Special series Book 8)

This is the Boxcar Children’s first trip to Canada, and they are very eager to explore Niagara Falls and all of the attractions in the area. They are even more thrilled when a friend of Grandfather’s asks if they want to help out in his souvenir shop. But then valuable things begin to disappear from the store. The Boxcar Children must find out who is responsible!