Abridged and Edited by Nora Kramer
{{tr|anonymous}} (abridgement of the anonymous Griffith & Farran translation - giving the professor's name as Hardwigg. The first paragraph matches but there are wording changes in the second paragraph.)
- "1st printing ... September 1973"; no number line
- no price in/on the book
- "Abridged and Edited by Nora Kramer" on title page
- abridgment copyright © 1973 by Scholastic Magazines, Inc.
- The artist is not credited, but signature visible on cover lower right, above TK 2525