After reading the encrypted text in the diary of Cedric Owen, a 16th-century scientist closely acquainted with Michel Nostradamus, speleologist Stella Cody and her husband Keith find a mysterious “living stone” - a blue skull made of solid crystal, hidden at the bottom of an underground river in the ancient Yorkshire mountains . This amazing item, which has powerful magical powers, is associated with the ancient Mayan prophecy about the end of the world, which should come in 2012. Stella learns that she is destined to become the last keeper of the blue stone and find the key to saving humanity. However, people want to stop her, they see in the magic stone only a tool to achieve their goals and begin a real hunt for it.