Matt's dad has disappeared. An eminent archaeologist, he's left Matt only a coded message with a bizarre set of instructions. Clues that lead Matt to the enigmatic Julius Venture and on to a world-wide treasure hunt. The race is on to find a lost treasure so powerful that it could change the world. Desperate to rescue his father, Matt knows he must get to the treasure first. With the help of Venture's daughter Robin, and the sponsorship of an enthusiastic billionaire, Matt is soon crossing continents, deciphering codes and exploring ancient ruins in an exhausting bid to stay one step ahead of his enemies. But ancient powers are stirring, and all paths seem to lead to the same place - a magnificent pyramid hidden in the Peruvian jungle. The world isn't ready for what Matt's about to discover. An ancient secret that could re-write history books. A secret that could blow open the greatest mystery of all: Atlantis.