Fabula
Object
Object

Key of Rassilon

Two irregular shards of the Key of Rassilon, their surfaces etched with shifting ancient glyphs that rearrange when handled. The fragments glow faintly under intentional manipulation and seamlessly realign far beyond mere puzzle-solving. When assembled incorrectly, the pendant transforms into destabilizing geometric forms, revealing unstable cosmic power. Romana retrieves these halves from the TARDIS safe, contrasting the Doctor’s failed attempts to unite them with her precise mastery, underscoring the artifact’s role as both a test and a revealer of hidden knowledge.
3 appearances

Appearances in the Narrative

When this object appears and how it's used

3 moments
S16E9 · The Stones of Blood Part 1
Romana redirects the Doctor to use the tracer

The two irregular shards lie on the workbench, their glyphs shifting subtly as Romana seamlessly fits them together. The completed base segment changes from an unsolved challenge in the Doctor's hands to a precise alignment under her direction.

Before: Scattered and misaligned on the workbench, their surfaces uncooperative under the Doctor's attempts
After: Fitted together into a cohesive base segment, their iridescent glyphs now stable and active
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S16E12 · The Stones of Blood Part 4
Doctor struggles to unite Key fragments

The two halves of the Key of Rassilon are retrieved from the safe and handed to the Doctor in pendant form. Upon handling, the object autonomously shifts between polygon shapes, revealing its unstable cosmic nature. When the third fragment is attempted to be fused, the three resist alignment, leaving the artifact in a dangerously incomplete state.

Before: Stored in two pieces inside the TARDIS safe, inert and separated.
After: Assembled into an unstable pendant that briefly transforms shape, then resists full recombination, leaving the Key dangerously fragmented and unpredictable.
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S16E9 · The Stones of Blood Part 1
Romana reassembles Key of Time fragment

The two irregular Key of Time shards lie scattered on the side room's workbench, their ancient glyphs shifting guiltily as Romana realigns them with instinctive accuracy. The Doctor's fumbling attempts highlight their fragility as functional components while Romana's seamless manipulation transforms them from obstacles into ordered segments.

Before: Disjointed fragments lying separate on the cluttered workbench, their surfaces flickering with subdued alien glyphs as the Doctor fails to find their connection points
After: Reconfigured into a partial but stable structure, the fragments glow faintly at their points of contact under Romana's guidance, now serving as a foundation for the next stages of the mission
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