[Dumbledore] stays behind in [Lupin's office], discussing Harry's adventure, the fact that [Pettigrew] is now indebted to him, and Harry's father, [James].
Exit Professor Lupin
[Harry] runs into [Lupin]'s office, where he gets confirmation of Lupin's resignation. Harry tells his whole story, and Lupin returns the [Invisibility Cloak] and the [Marauder's Map]. Then, [Dumbledore] arrives with a knock on the door, and Lupin says good-bye and departs.
The End of Another Year
As the school year ends, [Malfoy] is furious about [Buckbeak]'s escape, his classmates discuss next year's [Defence Against the Dark Arts] teacher, and everybody learns they've passed their exams.
On the [Hogwarts Express] home, [Hermione] admits she'll be returning to a regular courseload, [Ron] invites [Harry] to the [Quidditch World Cup], and an [owl] arrives with a letter from [Sirius], telling Harry all about his run from the [Aurors] and the [Firebolt], and giving Harry permission to go to [Hogsmeade] and Ron the owl that delivered the letter.
Back at [Kings Cross Station] once more, [Harry] bids farewell to [Ron] and [Hermione], and tells the [Dursleys] all about his newfound godfather, an escaped convict, as he heads home for another summer in [Surrey].