german u boat


I've stumbled across a small paperback book by an author going by the name of John Howard.
The title is William Francis Verrill of Staithes and the German U - boat, I was wondering if anyone knows of it as I can't find much online about it.
It's only 18 pages long but a nice little read anyone who knows a bit about the second world war and u - boat attacks may be interested in this publication.