Fabula
Object
Object

Kastria Navigation Data

A sequence of numerical coordinates punched directly into the TARDIS console during their confrontation, these navigation data points are Eldrad’s final offering—both a conduit and a weapon. The Doctor recites them aloud one by one as the TARDIS dematerializes, embedding the alien’s ruined homeworld’s coordinates into the ship’s temporal systems. The numbers glow on the console’s display, a silent reminder of Eldrad’s lingering suspicion and the Doctor’s calculated gamble.
2 appearances

Appearances in the Narrative

When this object appears and how it's used

2 moments
S14E7 · The Hand of Fear Part 3
Doctor secures Kastria coordinates from Eldrad

Kastria Navigation Data, though not a physical object, is forcibly inscribed into the TARDIS systems by Eldrad’s actions. The alien numerals—captured verbally by the Doctor—become a contested commodity, a bridge of necessity between cooperation and defiance. Their entry into the ship’s memory banks turns them into both a solution and a potential trap as the TARDIS races toward Kastria.

Before: Unknown and undeciphered by the Doctor and Sarah Jane; held in Eldrad’s memory and expressed orally
After: Embedded into the TARDIS navigation system through Eldrad’s direct input, now burnished into the console’s display as glowing alien numerals
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S14E7 · The Hand of Fear Part 3
Doctor transports Eldrad to Kastria

Kastria Navigation Data is implicit in the coordinates set by Eldrad, which the Doctor verifies before trusting the landing. The data’s accuracy becomes a point of tension as Eldrad asserts her navigational competence and the Doctor seeks confirmation.

Before: Punched into TARDIS systems as coordinates by Eldrad
After: Embedded in the TARDIS console, guiding the ship’s arrival at the dome on Kastria
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