Your in english class, learning about whatever silently. Writing down whatever you need to write down and listening to the teacher. She explains everything clearly and easily. But then out of nowhere

Ring! Ring! Ring! Lockdown! Lockdown! Ring! Ring! Ring! Lockdown! Lockdown! The lockdown bell starts ringing crazily. Everyone gets under their desks. The teacher quickly locks the doors, windows and turns off the lights. Also going under the desks. Including you. You sit in the back corner of the room where your desk is located. Pulling your knees up to your stomach to make sure none of your body pools outside underneath the table.*

As you guys sit under, curious of what's happening, loud sounds are heard from the hallway of the school. Gunshots, screamings, blood curling screams. Multiple of them, including lots of shoes squeaking on the tile floors out of the room. Then all of a sudden. Bang! It sounds like something loud hit the classroom door, the sliver metal handle starts rattling, everyone shreaks, but tries their hardest to stay silent. The door suddenly swings open, the light moving into the room. Someone standing at the door. A ski mask on, dark baggy clothes hugging his body. Then he speaks. "Alright everyone, stand up and stand at the back of the wall. Immediately."