Fabula
Object
Object

Third TARDIS

A second police box materializes around the original TARDIS as the two spacecraft converge, trapping the Doctor and Adric inside the unstable dimensional overlap. Adric’s dialogue confirms its existence—'Materialising round the police box just as we planned to do?'—while the Doctor’s urgency reveals its threat: someone else’s TARDIS forces a confrontation with an unseen precursor’s interference. The structure duplicates reality itself, warping space and time with creeping instability.
2 appearances

Appearances in the Narrative

When this object appears and how it's used

2 moments
S18E25 · Logopolis Part 1
Dual TARDISes converge at risk

The third TARDIS materializes around the second, creating an unstable overlap that duplicates reality and warps space-time. Its presence forces the Doctor into immediate confrontation with an unseen precursor’s interference, becoming the core threat to dimensional stability.

Before: Absent from the scene
After: Ongoing materialization creating unstable dimensional overlap, rapidly accelerating the collapse of spatial integrity
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S18E25 · Logopolis Part 1
TARDIS detects doomed timecraft

A second TARDIS materializes and merges physically around the Doctor’s police box, creating an unstable dimensional overlap that traps both timecraft and disrupts the console room’s gravity and structural integrity. Adric’s line confirms its existence as an active threat, forcing the Doctor to confront a clandestine predecessor’s interference that endangers Earth’s narrative stability.

Before: Concealed and inactive, presumably stationed by an unseen operator within Logopolis or beyond.
After: Fully engaged in a forced dimensional merger, destabilizing both vessels and warping space-time around the police box.
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