When the Alden siblings travel to their great-aunt Jane's ranch, they must solve the mystery of rare rocks found on the premises and a strange man snooping around the grounds.
"Years ago, a man disappeared from the yellow house on Surprise Island. Why? The Aldens have found a clue to the mystery! Adapted from Gertrude Chandler Warner's story of the same name, this new version introduces young readers to a Boxcar Children classic." --
