Karen's Unicorn

From Author Wars - https://authorwars.com/publications/karens-unicorn-289527.html

Overview:

Title: Karen's Unicorn
Author: Ann M. Martin
Year: 1997
ISBN-10: 0590065874
Publisher: Scholastic Paperbacks
Price: $3.50
Pages: 112
Binding: Trade Paperback
Type: Novel
Title Reference: Karen's Unicorn
Notes: "Baby-Sitters Little Sister" #99. Data from Amazon.com as of 2008-12-00.