The Doctor's internal struggle against his own diminishing confidence and grief over his diminished elder (likely Chronotis), complicating his leadership and strategic decisions

Professor Chronotis’ body suddenly dissolves, confirming Skagra has claimed another Time Lord’s mind. The Doctor and Romana learn the names Skagra and Shada for the first time, realizing the true …

Skagra dispenses with dialogue entirely and invades the Doctor’s mind directly, using the hovering sphere to drill into his thoughts. The Doctor’s resistance—lingering in sarcasm and defiance—collapses under sensory assault …