Twenty-first-century scientists make shocking discoveries on an expedition to the prehistoric age in the Hugo Award–winner’s “mystery within a mystery” (Wired). In 2070 AD, anthropologist John Gribardsun assembles a team of scientists to travel back in time to the prehistoric world of 12, 000 BC. Their unprecedented mission—one that could never be repeated—is to learn about the primitive Magdalenian culture. They are willing to risk anything to finally uncover the origins of human civilization. But they could never have imagined what their findings reveal . . . or the effects they will have on the future. After emerging from their timeship, the other members of the crew begin to suspect something out of the ordinary about their enigmatic leader. As Gribardsun adapts to their primitive surroundings with remarkable ease, it is almost as if he belongs . . .  Time’s Last Gift is set in Philip José Farmer’s expansive fantasy world that interweaves the lives of Sherlock Holmes, Jack the Ripper, James Bond, Flash Gordon, and other larger-than-life characters.