The African equation

"Kurt Krausmann's settled existence as a Frankfurt doctor is torn apart when his wife commits suicide. Unable to make sense of what happened, he agrees to join his friend Hans on a humanitarian mission to the Comoros. But as they sail through the Gulf of Aden their boat is boarded by pirates. The two men are taken hostage and imprisoned in a cave on the East African coast. Their ordeal is just beginning: the hostile kidnappers and environment will test their endurance to the limit. Through all of the this, even as he focuses on survival and escape, what can Kurt learn about his captors, the land he's been brought to and, more importantly, himself?"--Front book flap.