An electrifying thriller, perfect for fans of The Da Vinci Code. Whilst exploring the ruins of a Greek temple, Professor Jack Grady receives an urgent phone call- his brother, a renowned mathematician, has been murdered. His sudden death, that comes just as he was about to crack the code of a centuries-old mystery, sets in motion a global domino effect. Jack must race from Brazil and Jordan to India and Peru in order to discover the secret that links the Seven Wonders of the World, before it's too late...