Hardcover. NY/London, Frederick Warne, 1st, 1963, Book: Very Good, Dust Jacket: Very Good, Hardcover, 200 pages. Black & white illustrations by Kurt Roschl. Dust jacket price clipped, spine faded, has light edgewear. Dust jacket is protected by a mylar cover. A Stone Age boy takes a far journey on the Great River (the Danube) to find special rocks (obsidian?) in an island in the sea.
 "Kel of the Ancient Riverby: Horler, Hans")