Drake Enterprises is the most powerful company on Earth. Dr Lila Kreeg is its most valued asset. But her experiments open a doorway which allow an evil back into the universe. The Bruce Master can offer Lila the world, so long as she obeys him...
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
