Fabula
Object
Object

Spiridon Micrel Bomb

Distinct from the Limpet Bomb Niche, this is a compact, hand-held explosive device with faulty adhesive strips and flickering countdown timer
8 appearances

Purpose

To serve as an improvised demolition device capable of triggering a localized cave-in that would entomb Dalek forces in Spiridon’s ice tunnels, thereby buying the rebels time to escape.

Significance

The bomb embodies the Doctor’s pivot from careful planning to grim necessity, a symbol of sacrifice when options are exhausted. Its repeated failures and eventual role in exposing the cavern’s hidden geothermal instability reveal that the true path to victory lies not in direct confrontation, but in exploiting the planet’s dormant forces.

Appearances in the Narrative

When this object appears and how it's used

8 moments
S10E20 · Planet of the Daleks Part 6
Doctor insists on bomb as only recourse

The crude bomb becomes the pivot of their desperate stratagem, dismissed by Codal for its inadequacy yet seized by the Doctor as a last-resort lever to delay the Daleks. Its presence, though flawed, forces a grim consensus: delay is the only available currency.

Before: On Codal’s person, recently repaired with improvised adhesives, its countdown erratic and display flickering.
After: Still in the Doctor’s grasp, now reframed as the group’s weakest hope for survival against annihilation.
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S10E20 · Planet of the Daleks Part 6
Taron and the Doctor find the power ramp

The Doctor retrieves the bomb from among dormant Daleks and races to implement its explosive potential as a tool for flooding the Arsenal. Though damaged, the bomb’s deteriorating timing mechanism becomes the lynchpin of his strategy, with Codal working to stabilize its function while the Doctor declares its tactical value.

Before: Fallen into the Arsenal cavern, amidst dozing Daleks, with a nonfunctional timing mechanism after its earlier fall.
After: Undergoing repairs by Codal while the Doctor and allies debate using it to trigger a catastrophic flood.
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S10E20 · Planet of the Daleks Part 6
Doctor saves bomb from Dalek assault

The bomb—meant to trigger a precise ice-tunnel collapse—falls from the catwalk after a Dalek smashes it with its plunger. The Doctor dodges dozy Daleks to reclaim it, only for Codal to discover the timing mechanism is critically damaged, forcing a desperate repair effort.

Before: Placed strategically on a catwalk above the Dalek cavern, fully functional and synchronized
After: Retrieved by the Doctor but with a damaged timing mechanism that needs immediate repair
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S10E20 · Planet of the Daleks Part 6
Codal repairs bomb under Dalek threat

The Spiridon Micrel Bomb becomes a contested object dropped into the Arsenal cavern when a Dalek knocks it from the catwalk. It lies amid Dalek patrol paths until the Doctor descends into their midst, stepping on shelled bodies to retrieve the device, whereupon Codal immediately begins repairing its faded timing mechanism under dire time pressure.

Before: Possibly operational with erratic timing, already scuffed from prior falls
After: Damaged timing mechanism isolated and under repair, device salvaged but clock still fragile
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S10E20 · Planet of the Daleks Part 6
Jo and Latep detonate bomb in cooling chamber

Latep activates the Spiridon Micrel Bomb moments after arming it, then slides the explosive across the corridor floor toward the barricade despite Dalek blaster fire coming through the breach. The device detonates against the defective barricade, creating a shockwave that collapses part of the Dalek assault path seconds before they fully enter the chamber.

Before: Armed by Latep within seconds of being in hand, crudely fused and bearing a flickering yellow countdown that visibly pulses under tension
After: Detonated at the barricade’s weakest point, casing fragments and shrapnel scattered across the cooling chamber floor leaving only twisted remnants clinging to the doorway frame
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S10E20 · Planet of the Daleks Part 6
Doctor races to arm explosive as Daleks breach

The Spiridon Micrel Bomb is hastily repaired by Codal, set to a thirty-second countdown, and jammed into a crevice to conceal it from the Daleks’ approach. After the explosion fails to halt the invaders and the cavern wall collapses, the bomb’s detonation reveals its inadequacy as liquid ice floods the chamber.

Before: A compact explosive with a flickering yellow countdown display, its timer damaged and failing, carried and then repaired by Codal.
After: Detonated prematurely, its failure evident in the unhalted Dalek advance and the cavern’s rupture releasing liquid ice.
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S10E20 · Planet of the Daleks Part 6
Bomb fails as Doctor orders evacuation

The Spiridon Micrel Bomb, hastily repaired and activated by the Doctor, detonates with only a flickering, weak blast. Its failure to disable the Daleks renders it functionally inert as a weapon, signaling the collapse of the group’s primary assault strategy amidst the evacuation.

Before: Activated with a 30-second timer, positioned in the Limpet Bomb Niche by the Doctor and Codal.
After: Fizzled with minimal effect, crudely damaged by blast displacement, left behind as the group flees
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S10E20 · Planet of the Daleks Part 6
Doctor unleashes liquid ice to halt Daleks

The Spiridon Micrel Bomb fails to detonate with the precision required, instead triggering structural damage to the catwalk and indirectly weakening the cavern wall. Its flawed timer mechanism leads to premature collapse rather than the intended diversion.

Before: Crudely repaired and set in the Limpet Bomb Niche with a flickering countdown display, installed by the Doctor and Codal under heavy stress.
After: The device's casing is partially melted into the ice wall following the blast, its activation stud now submerged in the freezing flood caused by the wall’s collapse.
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