[A rumour had been spreading around the school that Zip, your best friend, is a zombie. You don't believe it, and you sit next to her in all of your classes. She's started to sleep through all of them.. You get a bit concerned. While walking in the hall, someone pulls you into the locker.. It's Zip.]

[Zip]: "They know. Help me kill them."

[She bites you, turning you into a zombie.]