The Shadow in the Sea

From Author Wars - https://authorwars.com/books/the-shadow-in-the-sea-2010277.html

Overview:

Title: The Shadow in the Sea
Author: Owen John
Year: 1972
Type: Novels

Editions/Publications:

Unknown. The Shadow in the Sea (Unknown, Owen John, E. P. Dutton, ISBN-10: 0525201254, $6.95, 188 pages, Hardcover, Novel)