April fools.

Two boys create a monster that mysteriously appears and disappears all over town until they have to reveal their prank to get out of a tight spot.

Bibliographic Details
Main Author: Krahn, Fernando
Format: Book
Language:English
Published: New York : Dutton, [1974]
Edition:[1st ed.].
Subjects:
Description
Summary:Two boys create a monster that mysteriously appears and disappears all over town until they have to reveal their prank to get out of a tight spot.
Physical Description:32 unnumbered pages of illustrations (part color) ; 18 x 19 cm.
ISBN:0525258256 (lib. bdg.)