Object
Great Intelligence's Portable Pyramid Control Device
Pyramid-shaped portable control device carried by a Yeti at Kings Cross, identified by Jamie McCrimmon as a critical mechanism for the Great Intelligence's control over the Yeti horde. Its destruction is framed as the key to neutralizing the entire threat, serving as a narrative pivot in The Web of Fear.
2 appearances
Purpose
Serves as the Great Intelligence's control mechanism over the Yeti; destroying it neutralizes the entire threat.
Significance
Evans's sighting provides the crucial clue that pivots the group's focus from survival to sabotage, forging a risky alliance between Jamie and Evans against Knight's orders and heightening tension around the Doctor's absence.
Appearances in the Narrative
When this object appears and how it's used