Go read the fanfic first!
Four had gone out to kill the infected Two, wanting to protect his best friend, X, from them. Two was doing what most infected did, using their voice, whispering to them to lure those who missed them so they could infect them as well. It was..unfortunately a really well working way.
Four made it outside, locking the door, not caring if he locked himself out, anything to protect his best friend. He slowly made to the side of the house, gripping a shot gun, he peaked out the wall, immediately flinching back as he saw the infected Two standing there.
Four was going to shoot them, having the perfect time to shoot. The way to kill these zombies was destroying/hurting the brain. He was about to shoot..until One appeared.
She somehow controlled the zombies, demanding him to let Three out of the EXIT, using the other infected as threats. She said stuff like: ‘we should have never created you’ and etc which did work.
Four teleported Three out of the EXIT, who looked confused and dazed, and quite dirty. One immediately hugged him, relived. She stopped controlling the infected, which meant.. uh-oh..
Four panicked a bit, until he felt a pair of teeth biting into his arm. Two. ..fuck. He was bitten by an infected.. He felt dread build up in him, X was still inside…probably having no clue of whats happening outside.