About Dr. William J. Hartel
Dr. William Hartel is a frequent traveler with a keen interest in science and history. He also enjoys writing fiction. He left private dental practice in 2011 to join the United States Army, with which he served in Afghanistan, Kuwait, and Iraq. He has many friends in the scientific community, and has contributed his dental skills to some key archeological discoveries.
About Grover Gardner
Grover Gardner (a.k.a. Tom Parker) is an award-winning narrator with over a thousand titles to his credit. Named one of the “Best Voices of the Century” and a Golden Voice by AudioFile magazine, he has won three prestigious Audie Awards, was chosen Narrator of the Year for 2005 by Publishers Weekly, and has earned more than thirty Earphones Awards.