'This thing . . . it rewrites history. It dares us to question what we know about ourselves. About everything.'As a young girl, Dr Rose Franklin made a life-changing discovery.Hidden deep underground, she found an enormous, ornate, metal hand. Tests prove the artefact predates all human civilisation.Where did it come from?Dr Franklin leads the top-secret investigation into the mystery of its origin - but finding answers leads her to an awe-inspiring question.Were we meant to find it?When it emerges that there may be more pieces buried out there, a fierce race begins to solve this vast, global puzzle.And what happens when we do . . . ?