Just as I was beginning to think I wouldn't make it out of this one, Grawp showed up. He was apparently looking for Hagrid, from what I could understand---at least "Grawp want Hagger!" is fairly plain English, from him. He did a wonderful job distracting the centaurs, and their arrogance led them to think that they could deal with him as they had with Umbridge. Unfortunately for them, all their arrows did was to infuriate him, as well as spattering me and Harry with giant blood, and he chased the centaurs off.