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Object
Object

Corrosive Acid (Dalek Firebomb Component)

David extracts this corrosive acid from inside the Dalek firebomb and pours it onto the casing. The substance burns through the metal rapidly, exposing the mechanism, yet the ticking countdown continues unabated. Present alongside Doctor, Susan, Dortmun, and Robomen in the warehouse, it amplifies the peril as the group faces the armed device while the Doctor lies collapsed from alien drugs.
1 appearances

Purpose

Burn through the firebomb's casing upon release as part of its destructive detonation sequence

Significance

David's use of the acid fails to halt the bomb, forcing Susan and David to abandon the unconscious Doctor and flee through the sewers, fracturing the resistance group's unity at a pivotal moment.

Appearances in the Narrative

When this object appears and how it's used

1 moments
S2E7 · The End of Tomorrow
Susan and David abandon the Doctor

The corrosive acid is a critical component of the Dalek firebomb, designed to burn through the casing and trigger the explosion. David extracts it from the bomb and pours it onto the casing, which dissolves rapidly, exposing the timer mechanism. The acid's corrosive properties symbolize the Daleks' destructive nature and the irreversible consequences of their occupation. Its use in this scene is a double-edged sword: it allows David to neutralize the immediate threat of the bomb, but it also highlights the characters' desperation and the lengths they must go to survive. The acid's role is both functional (it disables the bomb) and narrative (it forces the characters to confront the brutality of their situation).

Before: Contained within the Dalek firebomb, primed to burn through the casing upon activation. It is a stable but highly dangerous substance, designed to ensure the bomb's detonation.
After: Used up, poured onto the bomb casing, which it has dissolved. The acid has served its purpose in disabling the bomb, but its corrosive nature has also left the timer mechanism exposed and vulnerable. The acid itself is now spent, its destructive potential expended in this moment.
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