The Doctor's adversarial rivalry with the Master, who seeks to dominate the Doctor through a temporal trap and consume his essence to escape his own regeneration limit

The Doctor is brought inside the corrupted Melkur vessel by the Master, who reveals this space has become an extension of his own physiology. The Master’s taunt about the domain’s …

The Master reveals his ambition to consume the Doctor’s mind and body, turning the Time Lord into a living archive for his own power. His rhetoric drips with cold calculation, …