Enigma

From New York Times bestselling author Catherine Coulter comes the heart-stopping twenty-first installment in the electrifying FBI Thriller series.

After Agent Dillon Savich stops a crazy man from harming a pregnant woman, the man unexpectedly falls into a coma. Doctors discover a drug in his blood they can''t identify, and his only identification is a yellow wristband marked E 2. Did this John Doe...