With his plans approaching fruition, the Master travels to Stamford Bridge in the 1970s: a location he believes might hold the key to his success. But what terrible secret lurks under the stairs of No. 24 Marigold Lane? And what sacrifices will the Master make in the name of ultimate victory?
According to one account, the Master had the appearance of Roger Delgado while on Gallifrey. According to another, he had Anthony Ainley's likeness. According to another one, the one with James Dreyfus's appearance was the incarnation who ran away from Gallifrey.
While fighting to extend his life at the end of his regeneration cycle, many bodies were possessed by the Beevers incarnation, but all kept somehow reverting to his real being until he finally regenerated into the MacQueen one. Hence, these sections cannot be strictly chronological