Do tourists know that millions of mummies of all kinds of animals rest under the sands near Saqqara in Egypt? Beneath the earth lies the real Noah's Ark, yet to be discovered! What motivated the ancient Egyptians to embalm millions of birds and hundreds of thousands of crocodiles? Erich von Däniken studied ancient documents that report that "miraculous creatures of many types and different from each other" used to live on Earth. Are all these creatures generated by human fantasy - or did all these monsters really once live on our planet? Yes, they lived - says Deniken in his exciting book.