In the dust of the Gilded Age Bone Wars, two vastly different men emerge with a mission to fill the empty halls of New York's struggling American Museum of Natural History: Henry Fairfield Osborn, a privileged socialite whose reputation rests on the museum's success, and intrepid Kansas-born fossil hunter Barnum Brown. When Brown unearths the first Tyrannosaurus Rex fossils in the Montana wilderness, forever changing the world of paleontology,...