Harry signalled us to smash the shelves around us, and when we did, we were able to escape in the chaos. For a while, we were able to stay ahead of our enemies, but even with the spells we knew, we were badly outclassed. I, myself, went down after one of those swine blasted me with a very nasty spell---if he hadn't been hit himself with a Silencio, that might have been the end of me. As it was, I awoke here, in the Hogwarts infirmary.