Author:
Warner, Gertrude Chandler, 1890-1979.
Imprint:New York : Scholastic, 1991
Description121 p. : ill. ; 21 cm.
Note:The Alden children travel on a Mississippi paddle-wheel steamer to visit an old family friend in his cabin near Hannibal, Missouri, and try to discover who is responsible for the mysterious activities near the house.