The hunt for the key

A few days ago I came across some info on a book called The Whistle Pig by Duck Miller, I sat at my computer all day reading comments about this book. There is a key hidden somewhere in the United States and finding the answer to where this key is hidden in the book. Everyone thinks that the key is in Pennsylvania according to all the comments that I have been able to find online . I ordered the book and am anxiously waiting it's arrival....just from what I could find online, I believe the key is hidden further South. I will update soon and am planning a trip just as soon as I can pinpoint the key's location.