Shepherds and Wolves: Survivor Chronicles 3
Andre, the betrayer makes his way through the sewers of Jefferson as two armies fighter overhead. There he finds one surprise after another as his plans fall apart.
To the west a vast army of crusading pilgrims is on the march, straight towards Haley and Jason. Devouring any and all who come into their path, as they wage war on the remnants of humanity.
Book3 of the series.