Chapter 7 - "The Sorting Hat" - In which Professor McGonagall tells the first-years a bit about the school and they are sorted into houses by the Sorting Hat. Then Dumbledore welcomes them, they have a feast and find their dormitory for their first night at Hogwarts.
Harry's First Journey on the Hogwarts Express
[Harry] and [Ron] are visited by [Neville], who is looking for his toad, and [Hermione]. They watch [Ron] try to turn [Scabbers] yellow, [Hermione] tells [Harry] about all of the books he's in, and she and [Neville] walk off.
Alone in their compartment once more, [Harry] and [Ron] continue their conversation, discussing [Hogwarts] houses, [Charlie] and [Bill], and [Quidditch].
[Malfoy], [Crabbe], and [Goyle] show up and almost instantly begin bullying [Harry] and [Ron]. When they reach for some candy, though, [Scabbers] bites [Goyle] on the finger and they leave.
[Hermione] returns as [Ron] and [Harry] discuss [Malfoy], managing to irritate them again before walking off.
The [Hogwarts Express] arrives at [Hogwarts] and [Hagrid] herds the first years into boats, which they ride to the castle before walking up the steps
The Sorting and the Welcome Feast
[Professor McGonagall] leads the new first years into the castle, introduces them to the four [houses] of [Hogwarts], and tells them to wait in the [chamber] next to the [Great Hall].
Waiting in the small [chamber] for the [Sorting] ceremony to begin, the first years talk about the ceremony and watch as the [ghosts] come in, discussing [Peeves].
[Professor McGonagall] returns and leads the first years into the [Great Hall] for the first time.
The [Sorting Hat] breaks into song, introducing the four [Hogwarts houses], and then begins sorting students as their new houses celebrate.