The bones of the first Tyrannosaurus Rex ever discovered have been unearthed in Montana's dusty cattle country, circa 1908. But Chinese American detective Chester Wong has another body to worry about--that of the paleontologist who discovered the fossil, shortly before his murder.   Hired by the daughter of a rancher who's been accused of the crime, Wong and his protégé, Last Chance Lee, must solve the mystery piece together the truth from the corpse and clues that have been left behind--and survive on the harsh frontier of the turn-of-the-century West.