Mystery of the Round Rocks Mark Meierhenry. David Volk. Jason Folkerts (illustrator). Print-version Price: $13.95 Tweet Hardback 44 pages 8 x 9 inches Full color illustrations ISBN: 9780977795536 Bronze Medal, Midwest Best Regional Fiction—IPPY Awards, Independent Publisher, 2008 Learn about Meierhenry and Volk's other two books, The Mystery of the Tree Rings and The Mystery of the Maize. While visiting their grandparents’ farm in South Dakota, Max and Hannah discover hundreds of rocks piled up in the corner of a field. Puzzled, the twins ask Grandpa if he has the key to this mystery. How did all those round rocks get there? In The Mystery of the Round Rocks, Grandpa describes the early, geologic history of South Dakota and the Great Plains. He takes the children on an amazing journey, riding along with the vast glaciers that carved out present-day flat farmland and the Missouri River, leaving behind thousands of telltale round rocks. Watch out for saber-tooth tigers and short-face bears, wooly mammoths, giant deer, and bison before Max and Hannah find the rocks and unlock their secret. The Mystery of the Round Rocks is suitable for children with a second- to fourth-grade reading level or for reading to a younger audience. "Highly recommended"—The Midwest Book Review Read the full review. [A] "nicely done lesson in natural history."—Roundup Magazine Request a media guide for this book. Download a press release for The Mystery of the Round Rocks below. Associated Files round rocks bookmark back.pdf round rocks bookmark front.pdf round rocks press release.pdf