Book Review - "Congo" by Michael Crichton.

In the novel "Congo", Travis, head of Travi-Com, a telecommunications firm, sends a group of scientists to the Congo in Zaire to gather diamonds needed to finish a breakthrough in laser communications technology.
The night the scientists spend in the Congo, they set up a camera for Travi-Com to see what was happening. The transmitting signal was lost before they could give Travi-Com details on the progress of their expedition. When they regained the signal they saw that some scientists were missing while others were dead at the campsite. It was clearly visible through the recording that…