Bone Clocks

This name is a reference to the fact that humans age normally as opposed to the Horologists. Horologists, literally translated, are people who study and measure time, and they are reincarnated at the end of each life with memories of their previous lives, meaning they aren't typical children. By contrast, the Anchorites never age. The humans, or Bone Clocks, are the only characters of this story who age normally.

Horologists

These are the "good guys" of the story, they are a small group of people who are tasked with stopping the Anchorites. Literally translated, Horologists are people who study and measure time but the Horologists of this story are supernatural beings who are resurrected and life indefinitely. They can be killed and this is a real concern as they head into their Second Mission against the Anchorites. Only a few of them survive and they...