Fabula
Object
Object

Helium Cylinder

A pressurized metal cylinder marked for helium use, its brass valve gleaming under the compartment’s harsh lighting. Leela triggers it deliberately, releasing a controlled burst that disrupts Dask’s dominance display—its hiss cutting through the tension like a blade. The cylinder’s unassuming industrial design contrasts with the violent rearrangement of power occurring around it.
2 appearances

Appearances in the Narrative

When this object appears and how it's used

2 moments
S14E20 · The Robots of Death Part 4
Doctor confronts Dask through D84s sacrifice

Though unseen, the helium cylinder is opened by Leela off-screen, releasing a pressurized hiss that disrupts the brittle calm of Compartment 19. Its controlled burst becomes a non-violent weapon, slicing through the tension like a blade and exposing the fragility of Capel’s command.

Before: Sealed and upright, a standard industrial cylinder resting unobtrusively in its usual location.
After: Partially emptied by Leela’s deliberate activation, now releasing a disruptive gas that alters the room’s dynamics.
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S14E20 · The Robots of Death Part 4
Dask executes D84 with Laserson probe

The helium cylinder, typically an industrial utility item, becomes a tool of compulsion under Dask's orders. Leela triggers its release at his command, introducing a distracting auditory element that temporarily shifts the compartment's atmosphere from violence to mechanical noise.

Before: Sealed and inactive, stored among other supplies typical of the compartment.
After: Audibly active, releasing helium under pressure, altering the sound environment.
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