I maneuvered myself to be across from Harry just as Ron dived towards the fluttering key. It flew out of his grasp towards Hermione before making a desperate turn in my direction. I used the tail end of my broom to block its escape. It made a last quick turn straight into Harry’s hands. We all landed quickly and Harry shoved the struggling key into the lock. After unlocking the door, the key flew away looking extremely battered now.