Could a very old and smart civilization have lived on Earth a long, long time ago and left behind a secret message for us? Some new finds in the sandy deserts of Egypt seem to say yes. Graham Hancock, a guy who's been looking into this for many years, thinks this lost civilization was all over the world. He even thinks they might have come from space. If what he says is true, then we might not know the whole story. We could learn a lot from this old civilization. Hancock has some evidence to show us about this.