Houseboat Mystery

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 a vacation traveling down the river on a houseboat.

Throughout their journey, the Boxcar Children have the feeling they're being watched. Little do they know, someone is looking for something on their houseboat—and he'll stop at nothing until he gets it!