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The Eden Project by John Bolin, 1st in his Peter Zachary series of action adventure thrillers, originally out from Random House's Crown Publishing Group's Christian-oriented Multnomah imprint in 2010, or so the UK site claims (main credits the same paperback to Bolin's own self-pub imprint). That said, the author does have other (non-fiction) Multnomah books available in print and on iTunes listed as ultimately originating from Random House and with Publisher's Weekly reviews.
Anthropologist Alex Forsythe spent three years studying a remote tribe in the Amazon jungle when they mysteriously vanished without a trace. Months later, a teenage girl from the tribe turns up babbling about a horrifying place her people had been taken. The girl’s body is ravaged by a strange malady, and blood tests reveal an unknown, lethal pathogen. Alex realizes she must find the source of the outbreak if there is to be any hope of a cure.
Nearby, former Army Ranger Peter Zachary leads a small team into the jungle to film a reality show created to explore and explain paranormal phenomena. When Alex and Peter’s paths cross and they join forces, they face the most dangerous adversary they’ve ever encountered—and a technology that threatens the future of humanity. Faith and science collide as Peter and Alex discover the dark secret at the heart of The Eden Project.