罗恩说,脸色苍白得像血人巴罗的鬼魂。
Oh , no , said Ron , pale as the Bloody Baron .
一个学生:看,那是血人巴罗!
A pupil : it 's the bloody baron !
血人巴罗的故事是怎么样的?他为什么能降住皮皮鬼?
What 's the story of the bloody Baron and why is he able to control peeves ?