本书是华裔澳大利亚人Kylie Chan所著的Journey to Wudang （武当之旅）三部曲中的第三部。

本书简介：
Ancient Chinese mythology comes to life in this bestselling series of martial arts and demons, dragons and gods, legends and lies ... and a journey to the depths of Hell.The demons that could control stones and elementals have been defeated, but the most powerful of Simon Wong's associates still remains -- the one who can create almost undetectable copies of humans and Shen. This demon has allied with Kitty Kwok and together they plot to trap Emma and Simone in a web of copies. Wudang Mountain is enveloped by dark foreboding as Xuan Wu begins to reappear -- sometimes human, sometimes turtle, but always without memory. Emma and Simone must race from Hong Kong to Hanoi as they try to rescue Xuan Wu before the demons capture him.

作者简介：
Twenty years ago Kylie Chan married a Hong Kong national in a traditional Chinese wedding ceremony in Eastern China. She and her husband lived in Australia for eight years, then in Hong Kong for ten years. She has seen a great deal of Chinese culture and has come to appreciate the customs and way of life.

Three years ago she closed down her successful IT consultancy company in Hong Kong and moved back to Australia. She decided to use her knowledge of Chinese mythology, culture, and martial arts to weave a story that would appeal to a wide audience.

Since returning to Australia, Kylie has studied kung fu (Wing Chun and Southern Chow Clan styles) as well as tai chi, and is now a senior belt in both forms. She has also made an intensive study of Buddhist and Taoist philosophy and has brought all of these together into her storytelling. Kylie is a mother of two and lives in Brisbane.