In China, Hunt on for Loch Ness Monster

The moon is barely a crescent in the sky as dusk darkens the milky green surface of Lake Kanasi. Four people huddle on the edge of a floating wooden dock, eyes scanning this mountain lake near China's remote northwestern frontier with Central Asia. Small waves lap at their shoes. In a soft voice, Yuan Guoying recounts his two sightings of the creatures. The first over there, from a cliff, Yuan says. Then again, 19 years later.