Adeline is an orphan. Her mother died three years ago when she was sixteen, and her father is lost 202 million years ago, in the late Triassic. Adeline knows he sacrificed his life to save hers, but her determination to find the truth reveals more questions. What has unnerved her father's ex-colleagues? What are they secretly digging for in the desert? Adeline will do whatever it takes to get to the truth, because somewhere, 202 million years in the past, her father is still alive.