Dead Again (Book #1 of the Zombie Diaries) by George Magnum
Approx. 45,020 words.
Published on August 28, 2011.
Within forty eight hours, it had become a global pandemic. There was no explanation. The dead were rising, returning to life, and devouring the living. Commander Peterson, leader of the most elite fighting unit in the U.S. armed forces, was assigned one, last final mission.