In chapter 3 Mac is presuded by a crazed man and Dennis takes him down by throwing cans at him. After that a little boy by the name of Jeremiah comes out of the women's bathroom. Mac and Dennis take him with them to find Anna in Sunnydale. By the time that they got there they were a little too late and Anna was attacked by a crazed person also known as a zombie. From this attack Anna obtained a gash on her leg that started turning purple like the markings on the crazed man in the gas station.
In chapter 4 they decide to go to a forest and camp out there. Once they get there Mac cleans up Anna's wound with hand sanatizer and then bandaged it with Spiderman band-aids. Then they all decide to go to sleep because they are extremely tired. After a while Mac woke up to find Anna gone.
Mac decied to go find Anna by himself and found footprints leading from Anna's blankets. So he follows the footprints. He eventually heard a stream and went toward it. What he found was someone standing there and he wasn't sure if it was Anna so he called out her name. When we cut to Dennis we just woke up and saw that Mac and Anna weren't there. So he woke up Jeremiah and gathered their stuff but when he gather's Mac's and Anna's sets of blankets he finds the footprints so he get's in the truck and follows them. When he hears the stream hegoes towards and sure enough Mac and Anna were there but what they saw was Anna holding onto Mac's throat.