Ritual Observation Window in Kroll's Temple Roof

The ritual window in the temple roof allows shafts of red-tinged swamp-light to spill downward, illuminating the Doctor and Romana as they lie bound. The Doctor uses its presence to explain how the creepers' contraction is timed to the sun's position, tying architectural design to the ritual's deadly mechanism.

The curtained alcove serves as a private meeting space where the Doctor leads Grendel during 'negotiations' under truce. It becomes the site of Grendel’s covert escalation, where he reveals his true intentions and attempts to co-opt the Doctor—before Romana and the Doctor flee to safety.

The curtained alcove in the Hunting Lodge coronation chamber provides Grendel and the Doctor with a private space to conduct their treacherous dialogue, allowing Grendel to manipulate the Doctor into considering his offer of power. After Grendel’s assault, Romana and the Doctor take refuge there, briefly shielding them from immediate detection during the unfolding chaos.

The curtained alcove houses the dormant android George, who lies unnoticed until the Doctor dashes to reveal him as a potential solution. Its shadowed concealment allows the Doctor to move secretly and propose using George as a living prop in the coronation, turning a decorative space into a tactical asset.

The curtained alcove in the coronation chamber serves as George’s hidden staging area before the staged enthronement. Its recessed stone niche shields the android from immediate detection, enabling covert movement to the secret passage and reinforcing the intrigue surrounding the coronation’s preparation.