Caboose Mystery - Boxcar Children, Bk 11 Author:Gertrude Chandler Warner, David Cunningham (Illustrator) 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 traveling on a train -- in their own caboose, Number 777. At one train stop, a man startles the Boxcar Children when he runs away after hearing the number of their caboose. It isn't long before the Aldens le... more »arn the mysterious history behind caboose number 777 -- a history that involves a circus clown, a high wire artist, and a valuable necklace. Come aboard and join the Boxcar Children in the Caboose Mystery.« less