Monergism has extensive resources related to this book. A search on their site for "The Mystery of Providence" will yield you links to the book on-line, as well as, MP3s of the book.
A search for John Flavel will yield many of Flavel's other works.
Lastly a search for providence will yield a treasure trove of materials regarding providence.
Thank you Monergism.
Now may I apply myself to the study of Providence, John Flavel and his book "The Mystery of Providence,"
May this study enrich and edify my life.