The first few Discworld books explore this a little bit too. I think pterry dropped the concept after that, I don't really remember it later in the series.
The first few Discworld books explore this a little bit too. I think pterry dropped the concept after that, I don't really remember it later in the series.
Darkness travels even faster than light on Discworld, because it has to be fast enough to get out of the way when light arrives.