Portable TARDIS Comparator (from hidden recess)

Extracted by Peri Brown from a hidden compartment within the TARDIS console room, used during volcanic crisis on Sarn

3 appearances

Appearances in the Narrative

When this object appears and how it's used

3 moments

S21E16 · Planet of Fire Part 2

Peri refuses the Master’s demands

The TARDIS comparator is held perilously over the sheer drop by Peri, serving as the central bargaining chip in the confrontation. The Master demands its return, threatening dire consequences if damaged, while Peri asserts her refusal to surrender it.

Before: In Peri’s possession, safely carried as a crucial component of the Doctor’s TARDIS.

After: Still in Peri’s possession, held at the cliff’s edge, its fate hanging in the balance as she defies the Master.

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S21E16 · Planet of Fire Part 2

Peri calls on Kamelion to break free

The TARDIS comparator is held aloft by Peri, positioned directly over the abyss as a bargaining chip and shield against the Master’s advances. Its loss would strand the Doctor’s ship on Sarn indefinitely, elevating it to both leverage and existential insurance amid the eruptive chaos.

Before: In Peri’s possession, removed from the TARDIS and carried as a secret safeguard against the Master’s influence

After: Still in Peri’s possession but threatened with destruction if the Master approaches too closely

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S21E17 · Planet of Fire Part 3

Peri entrusts Turlough with TARDIS device

Peri extracts the comparator from the hidden TARDIS recess and surrenders it to Turlough’s custody, framing its ownership as shared between her and the Doctor. The comparator’s faint hum diminishes as the volcanic air thickens, its truncated journey from alien artifact to Trion control chamber embodying the collision of two desperate missions.

Before: Contained in a secret compartment aboard the TARDIS, unknown to Peri before this moment.

After: Transferred to Turlough’s possession, now slung in his belt as part of the trio’s shared survival kit while sparks of traded trust ignite between them.

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