This poem is written in first person from the point of view of the Master, but the Doctor has some speech at the end of the poem.
The illustration of Missy holding a baby was inspired by a conversation between Steven Moffat and Russell T Davies. The plan follows that Moffat would have ended his era of Doctor Who on a cliffhanger in which Missy told the Master and the Doctor that she was pregnant.
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
