RT Book, Whole DB /z-wcorg/ DS http://worldcat.org ID 25834756 LA English T1 The mystery cruise A1 Warner, Gertrude Chandler, A1 Tang, Charles, PB Albert Whitman & Co. PP Morton Grove, Ill. YR 1992 SN 080755362X 9780807553626 0807553689 9780807553688 AB While on a cruise with their grandfather, the Alden children help discover who is behind the mysterious troubles of the ship--disconnected phone lines, engine trouble, a man overboard--and still have fun sightseeing, eating, and swimming.