Mike's Mystery — Gertrude Chandler Warner

One warm night four children stood in front of a bakery. No one knew them. No one knew where they had come from.

Henry, Jessie, Violet, and Benny used to live alone in a boxcar. Now they have a home with their grandfather and are spending the summer out west on Mystery Ranch.

The excitement begins when they meet their old friend, Mike. When Mike is blamed for starting a fire, the Boxcar Children know he's innocent. But can they discover who's really behind Mike's Mystery -- before it's too late?