Natalie McDonald , the book Harry Potter and the Goblet of Fire , was a real person . Was a girl of nine years. Resided in Toronto , Canada , and had leukemia. She wrote to JK Rowling asking what would happen next in the Harry Potter books , because it could not live long enough to be able to read them . JK replied the girl, but she died one day before the arrival of e- mail . In tribute , JK Natalie has one first-year student at Hogwarts , Sorting Hat by being chosen to go to Gryffindor - the home of the brave . Later, when JK went to Canada for a promotional tour for Harry Potter , visited the girl's Family.