Enter the World of Prey by L. A. Larkin

A journalist who travels the world exposing heinous crimes makes enemies. Olivia Wolfe has more than most. When her anonymous source is murdered, Wolfe must unravel the terrible secret that connects a British Cabinet Minister, a Vietnamese billionaire, and a poor South African teacher to a series of gruesome murders. Soon Wolfe is hunted by a terrifying assassin. With governments in the balance and the survival of one of the most magnificent creatures on earth in her hands, can Wolfe stay alive long enough to expose this shocking conspiracy? Four murders. Four countries. One terrible secret. 'In Larkin, Michael Crichton has an heir apparent' - The Guardian 'Larkins's fast action style is accompanied by impressive research' - The Times 'Action and intrigue in spades' - Peter James