Enigma: An FBI Thriller, Book 21

The FBI Thriller series by Catherine Coulter is a heart-stopping, electrifying ride that will keep you guessing until the very end.

With dual plot thrillers and shocking conclusions, this series is sure to keep you on the edge of your seat.

In the latest installment, Agent Dillon Savich must stop a crazy man from harming a pregnant woman, only to discover that he has fallen into a coma with an unknown drug in his blood.

When her newborn baby is kidnapped from the hospital, Savich realizes there's a connection between the kidnapping and the unconscious John Doe.

DNA tests reveal a startling fact: his cells are unlike any other - he's an Enigma.

With the help of Agents Cam Wittier and Jack Cabot, they must find the kidnapped baby, uncover the link, and determine what bizarre drug was used on John Doe and why.

Meanwhile, a convicted bank robber named Liam Hennessey escapes from the Federal Marshals and goes into hiding in the Daniel Boone National Forest.

Will they be able to find him before he causes more harm? Find out in this gripping and suspenseful installment of the FBI Thriller series by Catherine Coulter.