Christina, Grant, Mimi, Papa visit Papa's good friend who lives on a cattle ranch in Nevada. They land the Mystery Girl on a small airstrip near Area 51 and soon learn that the rancher and his wife have been losing their cattle. While trying to solve the mystery of the missing cattle, Christina and Grant find a "crop" circle clue. Could it be alien abductions? This spooky mystery has the kids traveling in an RV, riding on 4-wheelers, visiting a few ghost towns and getting stuck in a mine.

LOOK whats inside this mystery – people, places, history and more!

Place in Nevada: Flyin R Ranch • Little ALeInn • Area 51 • Mojave Desert • Pahranagat Valley • Ash Springs • Richardville Road • E.T. Highway

Educational Items: Smores • Cattle ranching • Crop Circles • Shoshone Indians • Sonic booms • The Gold Rush • Map coordinates • Pahranagat Valley: flora, alfalfa and cottonwoods • Air Force • Aircraft testing • Groom Lake • Night vision goggles • Radio transmissions

This mystery incorporates history, geography, culture and cliffhanger chapters that keep kids begging for more! Each mystery includes SAT words, educational facts, fun and humor, a scavenger hunt and activities. Each Carole Marsh Mystery has Accelerated Reader Reading Levels, Lexile Measures, Fountas & Pinnell Guided Reading Levels and Developmental Reading Assessments Levels.