Where did the cover art come from?
– The design features the large rock outcropping at Inspiration Point at House On The Rock, which is located near Spring Green, Wisconsin. The vault door is from the defunct State Bank of Spring Green. It is now a local restaurant. Both are located not far from the fictitious village of Oak Cliff.
What is the significance of the cover design?
– For the answer to this question, you’ll have to read the book to find out what the cover art might represent.
The author took both photographs and created the merged effect using Photoshop and Pixelmator Pro on a Mac.