Blue Gold

Blue Gold is the second book in the NUMA Files series of books co-written by author Clive Cussler and Paul Kemprecos, and was published in 2000. The main characters of this series are Kurt Austin and his sidekick Joe Zavala. Blue Gold is about attempting to control the world's water at any cost, including mass murder. Kurt and Joe Z must stop these events from happening with the help of a scientist who discovered how to purify water and collect free energy from it.