Cue No. 24

The lowest C in the orchestra rumbles quietly as the locket prepares for battle. Muted horns play the all-too-familiar muted 3-Note Motif, then silence. The locket opens. An aggressive timpani roll crescendos from nothing to the top of its dynamic range, and then the orchestra explodes into a flurry of dissonant long brass chords and strings swirling around violently. The horns, now unmuted, play the 3-Note Motif again, this time with a big and full sound. The Spider Motif is heard over the shot of Ron being chased back by them coming from the locket, and the key center moves up as the 3-Note comes back. 

Strings whoosh around, and apparitions of Harry and Hermione appear in front of Ron, spouting lies and insecurities at him to try and weaken his will to destroy the Horcrux. The chords get darker and more aggressive, and xylophone and piano strikes begin to slice through the texture. Ron and Hermione's Theme comes in as the Hermione apparition teases Ron about loving Harry instead. This is an intensely dissonant version of the theme, though; it also utilizes clusters underneath, becoming a mockery of their relationship. A synth choir is even added to act as a cheap knock-off of a real choir that might be used if this was an authentic love scene. 

The Horcrux in Danger motif, which has not been heard since the last time a Horcrux was near death, enters in the choir over the sharp dissonance beneath. This theme has only appeared once in Harry Potter and the Chamber of Secrets (2002), when Tom Riddle's diary (unknown as a Horcrux to Harry at the time) was close to being destroyed. Though the theme played during Harry's battle with the Basilisk, the venom from the great snake is now infused into the sword of Gryffindor (which appears in both scenes). It only made sense that other Horcruxes would remember the threat. 

Ron runs towards the locket and strikes swiftly. The nightmare ends as soon as the Horcrux is destroyed, and both friends sit, contemplating the feat they just accomplished. The camera moves to Ron, and we hear his theme finish in the clarinet.