Doctor Who
S20E6
· Snakedance Part 2

Tegan confronts over the Great Crystal

Tegan

Plot Beats

The narrative micro-steps within this event

1

Tegan demands to know who has removed the Great Crystal, revealing her growing obsession and the Mara's influence.

calm to urgency

Who Was There

Characters present in this moment

1
Tegan Jovanka
primary

Enraged confrontation masking deep, instinctive terror of the void left by the Crystal's absence

Tegan stands in the cavern’s slimy half-light, her posture rigid with affront and rising panic as she surveys the empty pedestal where the Great Crystal should be. Her voice carries sharp authority, bordering on hysteria, betraying her role as an unwilling host to the Mara’s psychic influence even as she denies its intrusions.

Goals in this moment
  • • Demand immediate answers about the Crystal’s removal to regain control over her environment
  • • Reassert her own agency, resisting the emerging psychological encroachment of the Mara
Active beliefs
  • • The world should respond to her commands and expectations, reflecting her pre-crisis sense of normalcy
  • • The removal of a sacred artifact implies personal and cosmic danger she must confront directly
Character traits
indignant panicked proactive trauma-adjacent denial
Follow Tegan Jovanka's journey

Objects Involved

Significant items in this scene

1
The Great Crystal

The Great Crystal is absent from its pedestal, its removal creating a physical and symbolic vacancy in the chamber’s spiritual infrastructure. Tegan identifies its loss as a violation of the chamber’s order, accelerating the breakdown of psychic containment measures that had kept the Mara dormant.

Before: Embedded in the pedestal as a containment device, …
After: Removed and thus freeing the chamber’s dark potential, …
Before: Embedded in the pedestal as a containment device, pulsing with faint psychic energy
After: Removed and thus freeing the chamber’s dark potential, though physically unseen within this event

Location Details

Places and their significance in this event

1
TARDIS Central Control Chamber

The Chamber of the Mara serves as a claustrophobic stage for Tegan’s outburst, its confined walls amplifying the resonance of her voice and the metaphysical rupture caused by the Crystal’s removal. The cavern’s carved pictograms and damp glisten seem to hush in response, voicing ancient discomfort as the modern crisis ignites beneath them.

Atmosphere Tense and charged with impending doom, the chamber’s humidity and dim light heightening the sense …
Function Sacred containment vessel now exhibiting signs of malfunction due to human intervention
Symbolism Represents the frailty of all psychic barriers between worlds and the cost of reckless curiosity
Empty pedestal bearing carved serpent motifs Humid, metallic-tinged air thick with mineral scent

Narrative Connections

How this event relates to others in the story

What this causes 1
Causal

"Tegan’s demand in the Chamber of the Mara about who removed the Great Crystal triggers the synchronized activation of the secret vault door in the same moment the TARDIS crystal glows—revealing a supernatural link between her will and the artifact."

Crystal resonates with Mara's return
S20E6 · Snakedance Part 2