Zombie World (NA Version)(Zombie Apocalypse #4)

Sam and the group are back on the road, this time traveling to the deadly city of Chicago at the behest of Dr. Richards. They carry the cure with them—the answer to all of their problems. If they can get back to the city where the nightmare started, they have the chance to fix the future for everyone that has survived to this point. The journey is full of danger, but Sam and the group are prepared to risk it all.