There were only 3 zombies in the hallway. Mark stood outside in the hallway. All the zombies were facing the other way. He slowly went to the first one and took quick care of it. He didn't stop there and went for the next one immediately. As the 2nd one fell on the ground there was only one left in the whole hallway.
The last zombie heard the sound and turned around. It charged towards him, with its hands stretched out. Mark side-stepped, escaping its charge, and slashed while turning around. It fell down as the head detached from its body.
He looked at his clothes and exhaled in relief when there was no blood on it. He looked at the kitchen entrance and noticed David and Suzie peeking out. He waved his hand, motioning them to come out. They followed along the hallway, crossing many rooms. They reached the end and now could go either left or right. Mark looked at the board showing directions and saw the lobby was to the right.