Book report: "The Mystery at the Dog Show."

Henry Alden and his little brother, Benny Alden and sisters, Jessie Alden and Violet Alden were Boxcar Children. They used to live alone in a boxcar (it looks like a mobile home) which they found in the woods when their parents died; at the time they were very young. After their grandfather took many years to find them, they finally have a home to live with their grandfather.
One day, a daughter of their grandfather's friend who has a champion dog, Sunny, invited them to a dog show at Greenfield. When they went to the dog show, the Boxcar Children met all kinds of dogs, from a spotted Dalm…