“The Harvest of Time” by Alastair Reynolds (2013) — Doctor Who
Synopsis
Mysterious events involving disappearing oil rigs and a secret Defense Ministry project attract UNIT’s attention, especially when the Master’s involvement becomes apparent. The Master is being used as a consultant by a Ministry of Defense communications project but in reality he is using them to broadcast a tachyon rescue signal to his past and future selves. However, the rapacious alien race of the Sild intercept the signal and use it to pluck various incarnations of the Master out of time, starting to erase him from existence. Then the alien invasion begins, whose object is to capture the Master himself as the Master Stroke of their Master Plan of creating the Master Computer, built of all the incarnations of the Master they were collecting. 1 They don’t find him, thanks to the interference of the Doctor who came to rescue him, which only leads to the aliens capturing him anyway in the far-flung future. But that is exactly what the Master wants, because the Master is in control of the computer, not the Sild, as they discover.
