The Knight at Dawn

From Author Wars - https://authorwars.com/publications/the-knight-at-dawn-585552.html

Overview:

Title: The Knight at Dawn
Author: Mary Pope Osborne
Year: 2010
ISBN-10: 9780679924128
Publisher: Random House
Pages: 65
Binding: Hardcover
Type: Chapter Book
Title Reference: The Knight at Dawn
Notes: 17th printing of the Library binding edition. The purchasing library stamped this copy, "SEP [September] 2012." However, the latest book the publisher lists in the front, "Leprechaun in Late Winter" (book #43 in the series) was first published in Jan. 2010 (book #44 in the series, published in September of the same year, is not listed). This is why I'm assuming this book was published in 2010.