New York: Atheneum, 1967. Carl Kidwell. 1st Edition. Hardcover. "The Mystery of the Great Swamp" by Marjorie A. Zapf. Published by Atheneum, New York, 1967. Illustrated by Carl Kidwell. First Edition stated on the copyright page. Measures 8.5"x 5.5", 167 pages. The dust jacket is in very good condition. $3.95.....