Cue No. 35

A mischievous trill opens this cue on the shot of the Felix Felicis vial. The repurposed Sorcerer's Stone quote that introduced this potion earlier in the film is reprised here, as a payoff of sorts. Chords move around the woodwinds as the potion begins to affect Harry. Once the music comes to a humorous cadence, a bouncy variation of Double Trouble starts in the clarinets. The variation continues while the cellos meander, and some comedic timing is placed over Harry’s exchange with Ron and Hermione as he leaves the common room. Clarinets enter again with a more insistent Double Trouble on Harry’s aggressive exit.

The cellos waste some time playing a disjointed motif over the establishing shot of the Hogwarts greenhouses. When Slughorn is revealed, the bassoon enters with his theme, then shifts into a new key when Harry sneaks up on him. The woodwinds provide an insistent pulse overtop the theme. Double Trouble enters in its first proper form with the clarinets returning, accompanied by pizzicato strings. The wind section trades off triadic harmonies under Harry and Slughorn’s conversation.

Harry begins walking down the hill to Hagrid’s, followed begrudgingly by Slughorn. A slow reprisal of "Walking to Buckbeak" plays in the solo harp, accompanied by light strings and percussion. It trails off in the clarinet with pizzicato underneath. At Hagrid’s, the spider Aragog lies dead in front of them. Two small callbacks, the Dark Forest motif and the Spiders motif, invoke Harry’s horrifying memories of the creators during his second year.

More somber music takes over. Though a monster to everyone else, Hagrid sees Aragog as a pet still, and is grieving the loss of one of his oldest friends. Strings continue until Slughorn not-so-subtly interjects, requesting to take some venom from Aragog’s stingers for "academic purposes." Slughorn’s theme takes over until he somewhat aggressively gets what he needs and the cue abruptly ends.