A cyborg security android goes rogue, and... DOESN'T commit mass murder?! Wells turns the tired old trope of robot-goes-rogue-and-murders-its-creators on its head in this novella. Murderbot is a mass murderer, but it would spoil the story to tell you why it calls itself Murderbot, so you'll just have to read it. Reads a bit like a reaction to Ancillary Justice to my mind, because some similar themes, but very different story. Recommended.