Down at [Hagrid's hut], Harry, Ron, and Hermione find him decked out in what he seems to think is his finest, though it makes him look strange. They discuss the [skrewts], the [Triwizard Tournament], and Hagrid's refusal to join [S.P.E.W.]. However, just as they prepare to walk up to dinner together, Hagrid walks off without them - and the kids see him heading off with [Madame Maxime].
The Champions Are Chosen
Back in the [Great Hall], the Halloween feast seems to drag on as everyone is impatient to learn who the [Triwizard] champions will be.
Finally [Dumbledore] stands up to announce the three [Triwizard] champions. The [Goblet of Fire] spits out the three names - [Viktor Krum], Fleur Delacour, and Cedric Diggory - and then, to everyone's surprise, spits out a fourth name as well: Harry Potter.
Chapter 17 - "The Four Champions" - In which the Triwizard judges try to decide how Harry was selected, argue and finally accept the fact. Few believe that Harry did not enter his own name; Ron is not one of the few.
Harry Has No Choice But to Compete
Ludo Bagman leads a stream of teachers and officials into the room, where they debate loudly about Harry's ability to enter the [Triwizard Tournament]. Finally [Dumbledore] realizes that he doesn't have a choice, despite irate protests from [Karkaroff] and [Madame Maxime].
Harry Tries to Explain that He Didn't Put His Name In the Goblet
Harry and Cedric depart for their dormitories, and on the way Cedric asks Harry how he snuck past the [Age Line] to enter the [Triwizard Tournament]. Though Harry insists he didn't enter, Cedric obviously doesn't believe him, and they both head to bed.
Harry slowly walks back to his [dormitory], terrified of why he'd been chosen for the [Triwizard Tournament]. He manages to make it through a celebrating [Gryffindor] [common room] and into his [dormitory], but there he discovers that Ron doesn't believe his story either.
Chapter 18 - "The Weighing of the Wands" - In which Hermione tries to help Harry, persuading him to write to Sirius. The other Houses (Hufflepuff and Ravenclaw) are no longer friendly to Harry, but he finds an ally in Hagrid. As the situation in the school grows worse, Malfoy taunts Harry into throwing a curse; Malfoy responds, the curses clash, and hit Goyle and Hermione. Harry is called out of Potions for the Weighing of the Wands and meets Rita Skeeter, who is covering the ceremony for the Daily Prophet. Later in the day, an owl arrives from Sirius asking Harry to meet him.