Front cover image for What's that?

What's that?

Four friends attempt to find a hidden playmate. Features raised, textured illustrations
Print Book, English, 1978, ©1977
Collins, New York, 1978, ©1977
Fictional Work
23 pages (on double leaves) : illustrations ; 20 cm
9780529055002, 0529055007
3893489
Cover title
Translation of Hvad er det