Stupid moving staircases Closed

I hurried down the stairs anxious to get to class on time, I knew I was most likely already running late and I wasn't sure if I was in the right hallway. And I wasn't paying much attention to what was going on around me because I was too lost in thought. I had done completly awful in charms class last period not a single spell we had practiced had worked for me so I was in a very sour mood. I muttered the spell under my breath and tried to think about what I had done wrong wth it but I still had no idea. So I wasn't paying any attention to how the stairs seemed to shift under as I ran. And he whole flift of steps had begun shifting to my right. I had completly forgotten they could even do that. It caught me completly off guard my eyes went wide when I realized I was near the end of the stairs lifted off the ground. I was thrown completly off balance and ended up clumsily triping over my own feet I feel down a couple feet before hitting the floor hard when the steps had finally settled back into the ground. I glared at the stair case thinking how much I wanted to curse the crazy person who had designed thoughs awful things bu when the intital shock wore off. I tried to stand up and nearly scremed.

My left leg ached horribly. I glanced down at myself and relized I must have fallen on it at a weird angle and as I ried to move it I realized it was most likley broken. I tried to stand again bu the pain was awful and I didn't want to force myself to do any longer then I had to so I collasped back on the ground. I glanced down the hallway hoping to see a classroom full of people but every classroom in the hall seemed empty. I guessed the nurse could fix this up pretty quickly but I still needed some help getting their not sure what else to do I shout, "Help! Hey, is anyone here? Anybody."

Their was no replie and I slumped down in deafeat then I heard te sound of footsteps and I turned.