Three years ago a mysterious package arrived for Jake & Kady Ransom. Inside were two halves of a Mayan gold coin their mothers sketchbook & their fathers notebook. But their architect parents failed to return from an expedition to the site of a long-lost Mayan civilization. Now Jake & Kady are plunged into a terrifying adventure. Someone is very interested in whats happened to their parents. & in Jake & Kady themselves. So begins a journey into a world of dangers both ancient & modern. Can Jake & Kady survive long enough to solve the mystery?