Surprise Island (The Boxcar Children Series #2) - Gertrude Chandler Warner Vintage Paperback

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 on their own private island. There is a mysterious stranger on the island with a secret--but that's not the only surprise in store for the Boxcar Children.

By Gertrude Warner