PUBLISHED IN 4 LANGUAGES. In this romantic thriller, two American scientists survive a helicopter crash atop a South American jungle mesa, where they discover a 500-year-old Chinese colony hidden in a deep valley. The city, called Jou P'u T'uan (Prayer Mat of the Body), is a society based on the Taoist practice of sexual yoga: soul-awakening through physical ecstasy. But the population is dying because of its lack of male offspring. As the scientists puzzle out the mystery of the all-female society, a strangely beautiful warrior named K'un-Chien entangles the pair in an erotic triad that could heal their souls—or end their lives.