The Doctor Falls the episode, the Doctor (Peter Capaldi) must save himself and the remaining human population of a gigantic colony ship from Mondas, while also dealing with two different incarnations of the Master (Michelle Gomez and John Simm) at once. The episode features a cameo from the First Doctor, now portrayed by David Bradley. He had previously played William Hartnell, the original First Doctor actor, in the 2013 "Doctor Who" docudrama "An Adventure in Space and Time". Aboard the colony ship reversing from the event horizon of a black hole, the Doctor finds Bill has been converted into a Cyberman. The Master
Pendragon: Journal of an Adventure through Time and Space Pendragon: Journal of an Adventure through Time and Space Pendragon: Journal of an Adventure through Time and Space, commonly known as Pendragon, is a series of ten young-adult science fiction and fantasy novels by American author D. J. MacHale, published from 2002 to 2009. The series chronicles the adventures of Bobby Pendragon, an American teenager who discovers that he must travel through time and space to prevent the destruction of the ten "territories": critical locations throughout the universe. The series has sold over a million copies. Each book deals with the battle over a particular territory, fought by Bobby's side