Chapter 6 - "The Journey From Platform Nine and Three-Quarters" - In which Uncle Vernon takes Harry to King's Cross station and leaves him there. Harry meets the Weasleys who help him get to Platform Nine and Three Quarters and settled on the train. Here he gets to know Ron and meets Hermione as the train rumbles to Hogwarts. They are met by Hagrid and the First Years are taken by boat to the castle.
A Visit to Diagon Alley
As August goes by, Harry ticks off the days on his calendar and the [Dursleys] ignore him completely.
The night before his first day at Hogwarts, Harry asks [Uncle Vernon] about taking him to [London]. [Vernon] agrees only because [Dudley] needs to go to a private hospital anyway to have his tail removed.
Harry's First Journey on the Hogwarts Express
The [Dursleys] drop Harry off at [Kings Cross Station] and drive off laughing when he can't find [platform nine and three-quarters]. Fortunately, just before eleven o'clock, he is saved when he overhears Molly Weasley talking about Muggles, and she helps him get through the wall and onto the platform.
Coming out onto [platform nine and three-quarters], Harry watches other students walking by on the platform and finally gets onto the train himself, with help from Fred and George, who lift his trunk on for him.
Harry sits alone in a compartment on the Hogwarts Express and watches out the window as the Weasleys talk about him, the twins make fun of Ron and Percy, and Ginny cries and runs alongside the train as it pulls out of the station.
Ron arrives and asks to sit in Harry's train compartment, and Fred and George introduce him to Harry. Harry and Ron then enjoy sitting and talking together, discussing [Harry's scar], the Weasleys, speaking Voldemort's name, and Scabbers. Harry then buys a load of candy and learns about [Chocolate Frog cards].