Amazonia

the long version

The Rand scientific expedition entered the lush wilderness of the Amazon and never returned. Years later, one of its members has stumbled out of the world’s most inhospitable rainforest -- a former Special Forces soldier, scarred, mutilated, terrified, and mere hours from death, who went in with one arm missing . . . and came out with both intact. Unable to comprehend this inexplicable event, the government sends Nathan Rand into this impenetrable secret world of undreamed-of perils, to follow t