Doomsday Message (Mysterious Message Series, #1)

Fortunately, this is the early stage of the apocalypse, and the zombies are not very powerful.
Mathis relied on his petite body and the help of the map to nimbly pass through the zombies.
Getting closer to the capture target, she quickened her pace.
The location of the target is very hidden, which can save a lot of trouble.
 A boy who looked to be only 18 years old fell in the corner. His abdomen was penetrated and there was blood on his head...