Fabula
Object
Object

Polly's Inhuman Replacement Arm

Alien prosthetic limb used in Chameleon Tours' transformation process; injected with a substance to activate it for integration into Polly's body. Distinct from medical devices used for harm.
1 appearances

Purpose

Replace Polly's human arm in her alien duplicate body during Chameleon infiltration

Significance

Finalizes Polly's conversion to a deceptive Chameleon duplicate, shrinking the Doctor's intervention window as the team faces infiltration

Appearances in the Narrative

When this object appears and how it's used

1 moments
S4E31 · The Faceless Ones Part 1
Blade completes Polly’s alien replacement

Polly’s inhuman replacement arm is the physical manifestation of her impending erasure. Pulled from the cabinet by Blade, it is a grotesque parody of a human limb, its unnatural form a stark contrast to the mundane postcards and office trappings. The arm is both victim and weapon—it will become part of the duplicate Polly, a silent collaborator in the Chameleons’ conspiracy. Its injection marks the moment her original self is lost, replaced by something alien and obedient.

Before: Dormant, stored in the cabinet, awaiting activation as part of the transformation process.
After: Injected, transformed, and ready to be integrated into the duplicate Polly’s body.
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