Chapter 14 - "Felix Felicis" - In which Hermione and Ron discuss the Slug Club in Herbology and Harry notices an attraction between them, Dean takes Katie's place on the Quidditch team, and Harry and Ron run into Ginny and Dean kissing. Ron gets upset and Ginny tells him off, but Harry starts thinking of kissing Ginny himself. Ron becomes angry and plays terribly next practice, but for the match Harry pretends to slip him Felix Felicis, giving him confidence, and Gryffindor wins. After the game, Ron is spotted kissing Lavender, leaving Hermione upset.
Harry's Second Lesson With Dumbledore
[Harry] arrives for his second private lesson with [Dumbledore], where they begin by briefly discussing [Katie Bell], [Mundungus Fletcher], and [Draco Malfoy] before diving into the [Pensieve].
Popping up out of [Dumbledore]'s [Pensieve], [Caractacus Burke] describes the day [Merope Gaunt] came in to [Borgin and Burkes] and sold him [Slytherin's locket] for ten [Galleons].
[Harry] and [Dumbledore] discuss the last days of [Merope Gaunt]'s life, and contrast her actions with those of [Harry]'s own mother, [Lily].
As [Harry] and [Dumbledore] watch in the [Pensieve], a much younger [Albus Dumbledore] visits [Tom Riddle]'s [orphanage], meets [Mrs. Cole], and makes arrangements with her for [Tom Riddle] to begin attending [Hogwarts], though she descriptions of [Riddle] are somewhat disturbing.
In the [Pensieve], a younger [Dumbledore] has his first meeting with young [Tom Riddle] in his [orphanage], where he tells Riddle about [Hogwarts], hears [Riddle]'s descriptions of his use of magic, and forces him to return the possessions he's stolen.
After viewing the scene at [Tom Riddle]'s [orphanage], [Dumbledore] and [Harry] discuss what they saw, emphasizing attributes of [Riddle]'s personality that will become important later.
In [Herbology] class, [Harry] tells [Ron] and [Hermione] about his second lesson with [Dumbledore], and [Hermione] describes the previous night's [Slug Club] party. When [Ron] gets upset, she admits she was planning to invite him to [Slughorn]'s Christmas party, and [Harry] notices a change in his friends' behavior.
With no sign of [Katie Bell] returning from [St. Mungo's], [Harry] invites [Dean] to join the [Gryffindor Quidditch team] in her place.
At [Quidditch] practice, [Ron] panics and makes a fool of himself and [Ginny], along with the rest of the team, gets upset with him for his play.