Fabula
Object
Object

Mentalis Casing

The Mentalis casing is a reinforced segment of the Zeos computer core, featuring circuit-like metallic etchings that pulse with emergency light during alert protocols. A thin access panel is built into its surface, which the Doctor pries open with a sonic screwdriver, though the forced entry inadvertently activates the supercomputer's primary alert and self-destruct sequence. The casing protects the Mentalis supercomputer's core functions while housing its security protocols, and its destabilizing energy release threatens to reignite war.
2 appearances

Appearances in the Narrative

When this object appears and how it's used

2 moments
S16E24 · The Armageddon Factor Part 4
Doctor accidentally triggers Mentalis meltdown

The Mentalis casing becomes the focal point of crisis as the Doctor’s sonic drilling opens it and Mentalis registers an attack vector. Its internal circuits overheat while emergency protocols flood the chamber with red light and alarm tones.

Before: Securely sealed on the obsidian supercomputer, functioning nominally despite the Shadow’s tampering
After: Physically compromised, overheating, emitting red alert pulses, primed for self-destruct
View full event
S16E24 · The Armageddon Factor Part 4
Doctor and Romana unravel the Shadow's scheme

Mentalis’ casing forms the target of the Doctor’s frantic dismantling attempt, revealing circuits that glow white-hot under stress. Once breached, the casing pulses erratically with emergency red light as Mentalis transitions from calm supercomputer to alert-level war machine. Its structural integrity fails under the surge, but the self-destruct mechanism activates with terrifying precision.

Before: Reinforced metallic panel concealing Zeos’ automated war system, appearing stable and inanimate
After: Compromised casing exposes internal components, now triggering alert sequences and fatal self-preservation protocols
View full event