Apocalypsis Septem

Silently walking down the hallway of his old high school with a combat knife in one hand and brass knuckles in the other, he couldn't help but feel like someone or something would jump out from the shadows and attack him at any moment, then again he is raiding enemy headquarters and they got those things posted all over the place.
Bang! He ducked behind a wall as he heard a loud crash come from in front of him, followed by rapid foot steps, multiple sets of them. He clenched onto his knife tighter just waiting for those things to run past him. The foot steps drew closer and closer until finally... They stop right before reaching him