I totally enjoyed this book especially the character development and fast paced action is the prequel to the series Five Roads to Texas of how and who causes the spread of the infection with the Iranians and Koreans. It did start out a bit slow but quickly picked up. Grady and Anna are the primary characters in the book. Recommend this series with good narration and you enjoy military post-apocalyptic. I was given this free review copy audiobook at my request and have voluntarily left this review. Thank you