The first reference to Goblet of Fire is not a true reference. Only the sentence, "They appeared to have swum across the lake rather than sailed. All of them were shivering with a combination of cold and nerves as they filed along the staff table and came to a halt in a line facing the rest of the school." is quoted from the book. The rest is made up by me and is not meant to be viewed as JKR's writing.

The second time the Goblet of Fire is referenced is a quote directly from the book, chapter 12.