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Jason, I did this with a book and put it in the local library many years ago. It is a Geocache. Geocaching is a GPS game that you find different items with your GPS. Look at Geocaching.com for more information. I used it to solve a puzzle that contains the call number for the book. I send people around town on a quest to find out different numbers. Then they placed them in an order that I give them and come up with the call number for the book. This works great and everyone loves it. Especially the people at the library. Great Idea. https://www.geocaching.com/geocache/GC14J6T_circling-the-globe?guid=ed37ea4a-6fb2-455d-b0a3-819caa5a8df7
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