The Dana Girls Mystery Stories - The Secret at the Gatehouse by Carolyn Keene, published by Grosset & Dunlap, 1940.
There is a notice printed on the title page stating that the book was printed in accordance with wartime regulations.
The book is in very good vintage condition. There are 3 pages that have tears but are still intact. Most pages are discolored from age and the cover is worn on the creases of the spine and edges. There is also a water spot on the front. Please see pictures for details.
Approximate Dimensions: 7-1/2"L x 5-1/4"W