Sacred Key to Kronos' Catacombs

Distinct from the Temple Mirror Wall; serves as a portable Atlantean ritual object enabling access to protected temporal spaces

4 appearances

Purpose

To unlock the ceremonial gates of Kronos' catacombs, ensuring only authorized Atlantean clergy—specifically the High Priest—can enter the sanctum where temporal rituals unfold.

Significance

Serves as the literal key to the forbidden undercroft where Krasis once attempted to summon Kronos. Its theft by the Doctor transforms it from a symbol of ecclesiastical authority into a bargaining chip in the crisis unfolding within the Macrovisor network. The Master’s eventual pursuit of this key would confirm its critical role in controlling Kronos’ power.

Appearances in the Narrative

When this object appears and how it's used

4 moments

S9E21 · The Time Monster Part 1

Doctor awakened by Master in nightmare

The mosaic floor’s shifting spirals and labyrinthine patterns absorb the pulsating glow of the crystal altar, their geometric designs twisting under the Doctor’s gaze like a living maze. The uneven surface and gritty mortar briefly threaten his balance as he rises to confront existence beyond dream.

Before: Intact and stable, covering the dream sanctuary floor with interlocking volcanic and sulfurous hues

After: Unchanged in structure but optically disturbed by the Doctor’s frantic motion and the invasion of smoke

View full event

S9E23 · The Time Monster Part 3

Master gains control of Kronos

The Seal of the High Priest acts as the crucial key that, according to the Master, will allow him to learn the true constants controlling Kronos. Krasis’s admission triggers the Master’s triumphant realization, shifting the Master’s focus from the lost formula to the physical relics themselves.

Before: Housed in Atlantis’s temple, used in rituals to invoke Kronos but its secrets forgotten

After: Revealed as the critical means to control Kronos, now targeted by the Master

View full event

S9E23 · The Time Monster Part 3

Master's reckless summoning of Kronos backfires

The Master brandishes the Seal of the High Priest as a symbol of temporal authority, attempting to command Kronos to obey his will. The seal’s violet radiance syncs with the crystal, stabilizing the temporal rift briefly before the entity recoils.

Before: Clutched by the Master, its sigils glowing faintly with dormant power

After: Held aloft in a desperate attempt to assert control, its light flickering as Kronos resists

View full event

S9E26 · The Time Monster Part 6

Doctor seizes sacred key from Krasis

The sacred key to Kronos’ Catacombs is worn smooth from ritual use and etched with violet-glowing sigils. Krasis holds it as a symbol of his office and the power to open temporal vaults. The Doctor violently wrenches it from his hand without ceremony, asserting dominion over the keystone of temporal release. The artifact’s loss compels Krasis to follow or sacrifice all control.

Before: In Krasis’ possession, symbolic of his priestly authority and the catacombs’ sacred secrecy.

After: Seized and held by the Doctor, its power transferred to the one who now decides the fate of Kronos.

View full event