"Among all my books, this one will always occupy a particularly warm spot in my heart; for listen, reader, and I will let you into a little secret. Riddle Creek is really Ridley, and is a true-enough stream, flowing through one of the most charming regions in Delaware County, Pennsylvania. The railroad trestle which plays such an important part in the first chapter forms a picturesque feature of the landscape, in full view of a home where I was wont to spend many a joyous holiday-time and which I had in mind whenever I mentioned the Pellery."