Query: Novels that are 1940s children's books, travel books, and set on ships
Domain: books
Relevant documents:
Sea Change (Armstrong novel)
The Phantom Freighter
Evidence from documents: Sea Change (Armstrong novel): '''Sea Change''''' is a realistic children's adventure novel by Richard Armstrong, first published by Dent in 1948 with line drawings by Michel Leszczynski and promoted as "A novel for boys". Set on a contemporary cargo ship, it features a sixteen-year-old apprentice in the British Merchant Navy who has completed one year at sea, of four years required.
The Phantom Freighter: Novels that are 1940s children's books, travel books, and set on ships: '''''The Phantom Freighter''''' is Volume 26 in the original The Hardy Boys Mystery Stories published by Grosset & Dunlap.


This book was written for the Stratemeyer Syndicate by Amy McFarlane, the wife of long time Hardy Boys author Leslie McFarlane, in 1947. Between 1959 and 1973 the first 38 volumes of this series were systematically revised as part of a project directed by Harriet Adams, Edward Stratemeyer's daughter. The original version of this book was shortened in 1970 by Priscilla Baker-Carr resulting in two similar stories sharing the same title.
The Hardy brothers embark on a freighter trip under mysterious