Fabula
Object
Object

Stolen Brain Fluid from the Mine

A viscous, dark fluid pooled in a small glass vial Peri retrieves from the Master’s theft of bio-chemicals in the mine’s cramped tunnels. The contents slosh with an oily sheen as Peri examines it, the residue clinging to the vial’s walls a stark contrast to the grit of the collapsing cave walls. The Master’s reckless extraction triggers Peri’s suspicion, and her discovery of the fluid amid the chaos proves the Rani and Master’s experiments are more deliberate than accidental.
3 appearances

Appearances in the Narrative

When this object appears and how it's used

3 moments
S22E6 · The Mark of the Rani Part 2
Doctor races to save Peri in collapsing mine

The stolen brain fluid becomes a bargaining chip and justification for the Rani’s immediate departure. As the Master argues, she seizes the small vial of dark fluid from his grasp, asserting scientific priority over pride. This fluid represents the tangible fruits of their scheme, and its loss in the chaos forces the Master to abandon confrontation.

Before: Contained in a small glass vial in the Master’s possession, sloshing with oily residue from the mine’s tunnels.
After: Taken by the Rani, who pockets it securely as she retreats toward her TARDIS, prioritizing experiment over partnership.
View full event
S22E6 · The Mark of the Rani Part 2
Doctor and Peri argue under collapsing mine

The viscous dark fluid vial of stolen brain fluid is retrieved by the Rani before the collapse, clutched as a critical resource amid her pragmatic escape. The Master has earlier asserted ownership, but she asserts control to ensure its preservation for her experiments, prioritizing data over alliance.

Before: Stored in a glass vial, sloshing with an oily residue, taken from the mine’s cramped tunnels during the Master’s theft
After: Possessed by the Rani during her hasty retreat to the TARDIS, secured as her most valuable experimental asset
View full event
S22E6 · The Mark of the Rani Part 2
Cave-in traps Doctor and Peri in mine

Peri retrieves or encounters a glass vial containing stolen brain fluid amid the chaos of the collapsing mine. The Master previously stole this bio-chemical from miners, and the fluid’s presence emphasizes the Rani’s use of human minds as experimental reservoirs. Peri’s discovery is interrupted by the cave-in.

Before: Contained in a small vial amid the clutter of the mine tunnel near the Doctor and Peri
After: Still intact but discarded or dropped as Peri flees with the Doctor toward the Rani’s TARDIS
View full event