The Canoe Trip 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 they're going on a canoe trip with their Aunt Jane.

The Boxcar Children enjoy paddling across the sparkling lake and camping under the stars. But their trip really gets interesting when they find a mysterious riddle leading them to hidden treasure!