Fabula
Object
Object

Sorenson's Flask

A small glass vessel containing a viscous red liquid, sitting beside a container of shimmering crystals in Sorenson’s sealed room. The Doctor mixes a few crystals into the liquid with his equipment; the contents immediately glow white-hot before collapsing into inert brown dust. The flask itself is unremarkable until its contents react with uncontainable antimatter energy, revealing the Antimen’s corruption. Sorenson’s gaze later flicks between the vessel and the doorway, betraying dread at what the flask now signifies. The viscous red liquid within functions as a diagnostic agent, reacting visibly to antimatter signatures and enabling The Doctor to confirm Sorenson’s infection as an antimatter corruption before physical symptoms manifest.
4 appearances

Purpose

To contain and temporarily stabilize a reagent used in detecting antimatter signatures during quarantine screening.

Significance

The flask becomes conclusive evidence of Sorenson’s infection and the Antimen’s ontological corruption, forcing the Doctor to recognize that quarantine cannot contain this threat. Its contents transform from ordinary liquid to annihilating revelation in seconds, underscoring the irreversible nature of the transformation.

Appearances in the Narrative

When this object appears and how it's used

4 moments
S13E7 · Planet of Evil Part 3
Sarah discovers de Haan’s torn corpse

Sorenson’s flask appears later in the scene when Sarah is absent, revealing its contents darkened and viscous—a possible analogue to the Antiman’s consumption or transformation process. The spilled liquid spreads across the floor of Sorenson’s quarters, hinting at the instability consuming the scientist himself, linking personal decay to the antimatter anomaly.

Before: Upright on a surface in Sorenson’s quarters, partially full of an amber liquid
After: Knocked over, spilled and darkening the floor; flask discarded or left overturned
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S13E7 · Planet of Evil Part 3
Salamar executes the Doctor at point blank

The flask in Sorenson’s quarters is knocked over by his unstable body, spilling a viscous red liquid across the floor. Its contents—once innocuous—now mirror the corruption of his mind and the probe’s systems.

Before: Standing upright on the desk or cabinet
After: Knocked over; contents spilled and soaking into the floor, symbolizing failure
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S13E7 · Planet of Evil Part 3
Sorenson surrenders to the Antiman

Sorenson’s flask, a simple vessel for whiskey, becomes a harbinger of transformation as viscous red liquid spills onto the floor. The contents darken and thicken, mirroring the Antiman’s corrupting energy and marking the moment Sorenson’s human form is overtaken by the hybrid creature.

Before: A small glass vessel containing whiskey, situated in Sorenson’s quarters, half-full.
After: The flask is collapsed or overturned, its darkening contents spilled across the floor, soaked into the fabric beneath Sorenson’s body.
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S13E8 · Planet of Evil Part 4
Doctor exposes Sorenson's infection

The flask of red liquid, unremarkable at first glance, becomes the catalyst of truth. The Doctor picks it up, sniffing briefly before deciding its inclusion is necessary. When a few drops meet the crushed crystals, the mixture ignites a bright burst of light before collapsing into inert brown dust, confirming the presence of antimatter corruption.

Before: Upright glass vessel containing viscous, swirling red liquid; previously stored undisturbed beside the crystals.
After: Surface residue of reacted matter clings to its sides; contents now inert but contaminated.
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