Word World: The Dabar Series Book 1

An astrophysicist discovers a parallel world where everything is created and controlled by spoken words that is eerily similar to Earth only undeveloped. After leading his research team for the first contact trip to the parallel world, three of the team are killed under bizarre circumstances. When the deaths of the team members are discovered, the U.S. government assumes control of the project and later on opens the planet up to the general population and other countries, but difficulty and tragedy ensue as people struggle to overcome the planet's unique laws and language barrier.