Harvest of time

About “Harvest of time”

After billions of years of imprisonment, the vicious Sild break out of confinement and, from a ruined world at the end of time, prepare to conquer the past and rewrite history, needing to enslave an intellect greater than their own. On Earth, UNIT investigates a mysterious incident on a North Sea drilling platform, and the Brigadier begins forgetting about UNIT's highest-profile prisoner. A 2013 novel by Alastair Reynolds.