The Petrified Forest National Park in Arizona has the largest collection of petrified wood in the world. The beautiful wood is more than 200 million years old, and visitors to the park often take a little piece home with them as a souvenir. But stealing the wood has serious consequences, both legal and, some say, supernatural. See photographs of the conscience letters and learn more about Ryan Thompson's book here. Say hello on Twitter, Facebook and Instagram. Sign up for our occasional newsletter, The Accomplice. Follow the show and review us on Apple Podcasts: iTunes.com/CriminalShow.We also make This is Love and Phoebe Reads a Mystery.Artwork by Julienne Alexander. Check out our online shop. Episode transcripts are posted on our website.Learn more about your ad choices. Visit podcastchoices.com/adchoices