To much knowledge is bad

Oliver tensed when he saw the door of the room open. With a creak, a man clad in black gazed inside with a cautious expression, his eyes widened with visible shock and disbelief when he saw the group of people standing in the room.

The man wanted to shout out to alarm the others but Oliver jumped forward and grabbed the man's mouth with his palm to shut him up.

A barely audible muffled sound escaped from the man's throat as he eyed Oliver with horror before his throat was slit with a sharp glass shard.

Oliver clenched his jaw, he wanted to take out the enemy as quietly as possible but alas when he was busy killing he didn't notice the other man in black standing outside the door.

"They are here!"

A loud shout echoed throughout the whole floor. Within a second, the other men clad in black stopped what they were doing and dashed toward the room.