Lost city [a novel from the NUMA files]

An enzyme that prolongs life has been discovered in the North Atlantic, in an area known as Lost City. But why are all those connected with it getting killed? including the people attempting to harvest it, the scientists stationed in a remote Greek laboratory who have been disappearing one by one and what does the body found frozen in the Alps have to do with this? To Kurt Austin, leader of NUMA's Special Assignments Team, and his colleague Joe Z...