"Fuck!" he yelled. Making a jump, he kicked at a box and watched the debris pile for a second before pulling himself into the office building and snapping the window shut. If he wanted to get out of here and not get caught between zombies from all sides, he had to think smart and fast.

Obviously, finding an exit where they weren't swarming was the only option. Going up would just lead to an early end at being bitten or having to jump off.