Examined 6-, 9-, and 14-year-olds' imagination of the unknown within a storytelling context. Performed phenomenological analysis of the two youngest groups' drawings and the oldest group's story on the "heffalump" theme. Derived eight categories providing an image-analysis of the concept of the "unknown" structured as "something-otherwise," that is, an absence of constancy arising from color, form, time, place, and reality. Noted age and gender differences. (Author/KB)