Fabula
S20E6 · Snakedance Part 2

Doctor and Nyssa test the Great Crystal

The Doctor attempts to neutralize the Mara’s lingering influence through an experiment with the Great Crystal, pressing Nyssa to focus their combined thoughts on the artifact to provoke a reaction. Nyssa expresses hesitation at the vague purpose of the test, questioning why they should act without clear understanding. The Doctor insists on proceeding, framing it as a simple act of directed thought to reveal the crystal’s latent properties, unaware that this risky probing may draw the Mara’s attention back to them. key_dialogue: [ DOCTOR: Now, simple test. The Great Crystal focuses thought in some way. Now, if this is the same sort of crystal, it should exhibit the same properties. We must direct our thoughts at it and observe what happens. ]

Plot Beats

The narrative micro-steps within this event

3

The Doctor instructs Nyssa to sit down and think about a simple test involving the crystal.

calm to anticipation ['TARDIS']

The Doctor explains the test, directing Nyssa to focus her thoughts on the crystal and observe the outcome.

anticipation to curiosity ['TARDIS']

The Doctor initiates the test, and they prepare to observe the crystal's response to their focused thoughts.

curiosity to expectation ['TARDIS']

Who Was There

Characters present in this moment

2

Concealed urgency behind measured composure, relying on intellectual command to overcome hesitation

Seated on the TARDIS floor facing Nyssa, the Doctor speaks with calm authority, explaining a metaphysical experiment involving the Great Crystal. His tone is measured and instructional, masking impatience with Nyssa’s hesitation and radiating controlled urgency as he overlooks the risky nature of their untried procedure.

Goals in this moment
  • To empirically confirm the Great Crystal’s psychic focusing properties through immediate experimental action
  • To preemptively disrupt the Mara’s return by manipulating the crystal’s latent energy before it fully manifests
Active beliefs
  • Manipulating the Great Crystal with directed thought could reveal or neutralize its connection to the Mara
  • Controlled scientific trial is the safest path to uncovering the threat’s mechanism, even without full understanding
Character traits
authoritative logical single-minded persuasive
Follow The Fifth …'s journey

Balancing reluctant compliance with nagging uncertainty, unsure of the experiment’s validity but unwilling to outright refuse in the face of urgency

Seated on the floor as instructed, Nyssa responds with vocal confusion and skepticism. Her body language conveys reluctance, with words questioning the purpose and timing of the untested procedure. She complies physically but questions verbally, revealing internal tension between deference to authority and scientific caution.

Goals in this moment
  • To understand the purpose and safety of the experimental procedure before committing fully
  • To maintain professional skepticism while fulfilling her role as the Doctor’s scientific partner
  • To protect her own mental integrity from unknown psychic influences
Active beliefs
  • Scientific procedures should proceed with clear rationale and safety assurances
  • The risks of uncontrolled psychic experimentation may outweigh the potential benefits
Character traits
analytical hesitant methodical unconvinced
Follow Nyssa's journey

Objects Involved

Significant items in this scene

1
The Great Crystal

The Great Crystal becomes the focal point of a risky psychological experiment as the Doctor and Nyssa direct their thoughts toward it simultaneously. Its obsidian surface is silent but receptive, serving both as a scientific artifact and as a potential conduit for the Mara’s return, its psychic energy resonating unpredictably under concentrated mental focus within the TARDIS’s temporal field.

Before: Intact and stationed within the TARDIS, having been …
After: Energized by focused thought, its latent psychic potential …
Before: Intact and stationed within the TARDIS, having been brought aboard earlier for analysis; its psychic properties latent but detectable
After: Energized by focused thought, its latent psychic potential tentatively activated, signaling a reaction that could escalate into visible phenomena or dangerous resonance

Location Details

Places and their significance in this event

1
TARDIS Central Control Chamber

The Doctor’s TARDIS control chamber transforms into a makeshift laboratory where desperate metaphysics meets precise technology. The curved walls and hexagonal console frame a scene of controlled urgency, as the chamber’s temporal hum and ambient glow intensify around a simple act of seated mental focus—shifting the traditional command hub into a space of experimental hazard.

Atmosphere Taut with low-level alarm and scientific concentration, the air thick with unspoken risk and the …
Function Temporal laboratory for high-risk metaphysical experimentation and observation
Symbolism Symbolizes the intersection of control and chaos, where the Doctor’s intellect bends the TARDIS’s infinite …
The TARDIS console pulses with unstable energy, occasional warning lights flickering in irregular patterns Dimming bluish glow casts long shadows, amplifying the weight of each directed thought

Narrative Connections

How this event relates to others in the story

What this causes 1

"The Doctor’s experiment in the TARDIS—focusing thought on the crystal—directly results in the crystal glowing in synchronization with Tegan’s activation of the secret door in the Chamber of the Mara, proving the interconnectedness of mind, artifact, and reality."

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