From Michael Crichton, the #1 New York Times bestselling author of Jurassic Park, comes a thrilling adventure set in the Wild West that will keep you on the edge of your seat from the first page to the last!

If you thought Jurassic Park was an adventure, you should try the Wild West!

1876. In the lawless territories of the Wild West, two teams of explorers are pitted against one another. Their quarry? Dinosaur bones. But in a land filled with hostile Indian tribes and towns where pistol fights are a daily occurrence, every exploit puts their lives in danger...

William Johnson, a student with more privilege than sense, finds himself plunged into this deadly environment after making a brash wager. Alongside Edwin Drinker Cope, the famed adventurer, he stumbles upon a momentous discovery - dragon teeth of a fantastic size!

But to keep this extraordinary treasure safe, William must first confront some of the West's most dangerous and notorious characters...