The Great Gradepoint Mystery

From Author Wars - https://authorwars.com/publications/the-great-gradepoint-mystery-856334.html

Overview:

Title: The Great Gradepoint Mystery
Author: Barbara Bartholomew
Year: 1983
ISBN-10: 0027085104
Publisher: Macmillan
Price: $9.95
Pages: 106
Binding: Hardcover
Type: Novel
Title Reference: The Great Gradepoint Mystery
Notes: First printing with full number line. Price on front flap of Archive.org copy is unreadable; price from bookdepository.com.