Captain Martin Hawk and his crew arrive in Alexandria, Egypt on the clipper ship Yankee Spirit. With their mysterious guide, Ini-Herit, they embark on a journey to the famed Valley of the Kings. There, Hawk encounters Professor Donald Curtis who has made an incredible discovery — the tomb of Prince Erihppas. Up until now he was believed to be only legend. Within the tomb the professor has found a large Sphinx, made entirely of solid gold. It becomes the task of Captain Hawk to transport the Sphinx to a museum in England. But it is soon stolen by Captain Penrose, of the rival ship Black Arrow, and the chase begins. Once on the high seas strange, horrible and tragic events begin to occur. The mysterious guide Ini-Herit and the Sphinx are not what they seem. Packed with nail-biting suspense, action and adventure you will be hooked until the thrilling conclusion.