Shardovan's conflicted loyalty between Castrovalva's customs and ambiguous awareness of the Doctor's true situation

The weakened Doctor is roughly seated on a stone bench by Ruther and Mergrave, his vulnerability exposed in the alien town square. As locals move about in their distinctive veils, …

Shardovan stands in the library doorway as Tegan and Nyssa emerge laden with recovered texts. Their conversation reveals the limited usefulness of the books for escaping Castrovalva’s traps while confirming …

The Doctor's attempt to depart Castrovalva is abruptly halted when Shardovan and Mergrave intercept him outside the library. Shardovan's initial query about the Doctor's sudden urge to leave masks a …