Fabula
Object
Object

Sentient Fungus Web (Great Intelligence’s Control)

Glowing, pulsating fungal growth in the Underground tunnels, controlled by the Great Intelligence; actively engulfs intruders (e.g., Lane, Arnold), blocks the TARDIS, and serves as a narrative antagonist.
1 appearances

Purpose

Engulf intruders, cocoon victims, and block TARDIS transport through the tunnel

Significance

Kills Arnold and Lane, exposes the TARDIS to Great Intelligence control, reveals Evans' panic and potential disloyalty, and escalates the Underground crisis

Appearances in the Narrative

When this object appears and how it's used

1 moments
S5E26 · The Web of Fear Part 4
Tunnel Ambush and TARDIS Vulnerability

The glowing, pulsating fungus web is the active antagonist of this event, a sentient, adaptive force that weaponizes the tunnel’s environment. It reacts violently to Arnold and Lane’s intrusion, erupting in blinding light and deafening screams before dragging Lane into its cocoon and swallowing Arnold whole. The fungus’s behavior—targeting the soldiers while sparing the TARDIS (initially)—suggests it is under the Great Intelligence’s direct control, prioritizing human elimination over material assets. Its eerie glow and pulsating rhythm create a claustrophobic, almost hypnotic atmosphere, amplifying the soldiers’ dread.

Before: Encroaching but dormant in the tunnel, its glow and pulse minimal until triggered.
After: Agitated and expanded, now cocooning Lane’s body and having consumed Arnold. The web’s growth is a visible marker of the Intelligence’s spreading influence.
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