Fred, Sam and Joe are bored with the cowboy movie they're watching at a sleepover. Having traveled in time before to the time of pirates, giants and wizards, they wonder aloud what it would be like to see real cowboys. When the green mist starts rising from the magic book, they know they are on their way. The time of real cowboys turns out to be much dirtier, more difficult and dangerous than they could have imagined. Riding drag means they follow the herd, round up strays, land on cacti and eat horrible food. They are captured by members of a Cheyenne tribe. They wonder if they will ever get home again. They have discovered in their captivity information about the culture and government of the Cheyenne. If only they magic book will appear, they can return to their home and safety. At one point, they are strapped to a tree with expectations of being scalped by one of the more violent members of the tribe. Next, there is a battle between the cowboy cavalry and the indians. When the magic book appears just in time, they are transported back to the sleepover.
Typically, the illustrations of the books are comic with simple shapes and lines as in the cover illustrations. The style of illustrations varies when they are captured, depicting the Indians in a more realistic, detailed fashion. This seems to be appropriate and culturally sensitive. The pen and ink drawings typically add an element of hilarity to even terrifying moments. With illustrations on every fourth page integrated with the text, young readers will enjoy the humor and imagery provided. The cover conveys the imaginative nature of the books and comic style of the series drama.
The short chapters, action and humor will appeal to young readers building stamina toward chapter books. I'd recommend this book for children ages 7-10, depending on reading level.