Demnos Ritual Catalyst

Hieronymous hurls this smooth, reflective sphere into the steaming cauldron, triggering a flash of supernatural fire that illuminates the chamber and focuses the ritual’s intent. The Doctor immediately recognizes it as a ritual catalyst, neutralizing its effect by refusing its power while leveraging its revelation to challenge Hieronymous’s authority and competence.

Hieronymous throws this object into the cauldron earlier in the scene, causing a flash that signifies ritual activation. Its role in energizing the chamber’s occult atmosphere persists as the confrontation escalates.

The orange ball’s sudden introduction into the cauldron triggers a violent magical flash that momentarily obscures the Doctor’s entrance and frames the chamber’s ritualistic tension. Though not directly employed by Hieronymous during the confrontation, its presence as a ritual catalyst foreshadows the explosive consequences of failing to complete the ceremony.