chapter 11- The Firebolt

So basically After Harry hears this conversation he makes it back to Hogwarts and into his dormitory.  The next morning Ron and Hermione tell him not to go looking for black and not to do anything stupid.  Harry would do something stupid too.  He's too stubborn.  So he demands to go to Hagrid's hut to talk to him about Sirius Black and everything but they come to find that Hagrid had already been crying because Buckbeak (His hippogriff) is supposed to be killed.