Olivia Christie and her friend Josh Welles are in the middle of the greatest archaeological exploration of modern times. Along with her father, they are all searching for the sacred Talismans of the Moon -- the keys to the ancient world. Their first stop is the Valley of the Kings in Egypt. Next, they journey to the sacred mountains of China, and then on into the deep jungles of South America. Their final expedition takes them far into India, beyond the Elephant Falls. Can Josh and Olly tackle the dangers of these ancient civilizations and unravel their cryptic riddles in time to keep the artifacts from falling into the wrong hands?.