TWO PRIMITIVE TRIBES LIVING HALF A WORLD APART. ONE GUARDED REVELATION THAT WAS NEVER MEANT TO BE SEEN. AND A CALAMITY ABOUT TO BE UNLEASHED. In the jungle cities of the Amazon, thousands of tribal descendants suddenly drop dead at the exact same moment for no apparent reason. Strange truths start to emerge that lead respected ecologist, Antonio Medina, into the deepest reaches of the rain forest, to a tribe that has seen virtually zero contact with the outside world. On the other side of the planet, in the Indian Ocean, anthropologist Stel Foster is on a similar quest. When he learns of unlikely ties to the tribe in Brazil that his long-time professional rival, Antonio Medina, is investigating, he agrees to work together with the ecologist. Antonio isn't sure he can trust Foster, but together they are forced to solve a perilous puzzle, with the most alarming piece being two halves of a strange artifact safeguarded by both tribes for thousands of years. Even worse, a powerful secret society will stop at nothing to control the ultimate truth the artifact holds. With options running short and time even shorter, our comprehension of what it means to be human is about to shift forever. PRAISE FOR UNCONTACTED AND RICK CHESLER: "Uncontacted is everything you want in an action/adventure novel: races of unknown people, mysterious technology, and plenty of questions. What if? Rick hit it out of the park with this one, and what a ride it is!" --Nick Thacker, author of the bestselling Harvey Bennet Thrillers series "A jungle romp with undiscovered tribes and legendary artifacts...A threat to the very existence of humanity. It's all here and more. UNCONTACTED by Rick Chesler is a fantastic science-thriller in the best tradition of Michael Crichton and James Rollins." --Sean Ellis, author of CAMP ZERO and ASCENDANT "Over the top, inventive and scary fun!" --Jonathan Maberry, New York Times bestselling author of PATIENT ZERO "Great scientific concepts that are based in reality..." --ScienceThrillers.com "Chesler melds science and adventure with the brilliant command of the late Crichton." --Douglas Corleone, author of Robert Ludlum's THE JANSON EQUATION "The perfect combination of great research and impossible to put down writing." --Jeremy Robinson, international bestselling author of APOCALYPSE MACHINE and PROJECT NEMESIS