Adler, David. Cam Jansen and the Mystery of the U.F.O. M. 1980.
Second in a series, Cam Jansen has a photographic memory and uses it to solve crimes. In this Book, Cam and her friend Eric investigate a brief appearance of U.F.O.s.
TAGS: Cam Jansen, photography, mystery, aliens, U.F.O., John F. Kennedy, M, Mike, Level M