I've started collecting some James Rollins books. I read "The Judas Strain" some time ago and really enjoyed it, one reason being because it is in the same style as Dan Brown.
"Amazonia" is another James Rollins novel, the second of his works I have begun reading. I'm 100 pages in and it's riveting. I would say it's definitely a page-turner!
The scene is set in the Amazon jungle in Brazil where an American agent has been lost for 4 years. He suddenly turns up in a small village with 2 arms, and dies a short time later. Turns out 4 years ago he only entered the jungle with ONE arm!