This was an excellent audio book!  I loved the narrator, Ed Sala.  His voice was engaging and kept me interested.  He encompassed all of Dr. David Beck’s character.  David’s beloved wife was killed by a serial killer but then he gets an email with a phrase that only Elizabeth would know.  He begins following clues and questioning the validity of Elizabeth’s death.  David takes us on a thrilling and suspenseful ride hunting for his dead wife, running from police, and narrowly escaping harm himself in multiple occasions.  Harlan Coben is a master of words.  This story unfolds beautifully.  Read, or better yet, listen to this one!  You won’t regret it!