|aPeachtree City, GA :|bGallopade International,|c2010.
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|a158 p. :|Bill. ;|c20 cm.
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|aCarole Marsh mysteries|v41
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|aChristina, Grant, Mimi, and Papa head to the Great Smoky Mountains and end up in an A+ Appalachian mystery complete with an eerie mountain haze, spectacular scenery, a boisterous bear, confounding clues, and mystifying folklore!Christina, Grant, Mimi, and Papa make their way to Mount Rushmore to check out the colossal carving of four presidents ... and find a mountain's worth of mystery, history, precocious prairie dogs, quirky clues, befuddling Badlands, and one Crazy Horse!Christina, Grant, Mimi, and Papa travel to Wyoming's Devils Tower and climb into a "towering" mystery involving Native Americans, precocious prairie dogs, fascinating footprints, Unidentified Flying Objects, and aliens?