The Blue Sun, or Water Sun, fell from the sky during the War of Many Suns.
Ride Like the Wind[]
The fall of the Blue Sun happened long before the events of Six Ages: Ride Like The Wind.
It is described in the following rumor:
“ | "There is a rumor going around that the <Blue Sun/Water Sun> will rise again. It <was shot from the sky by Emperor Lukarius/could not keep aloft/tumbled from the sky> during the War of Many Suns, so this seems unlikely." | ” |
Speculation[]
The Blue Sun may in fact be the Blue Moon, encountered in the event Gods War: Dwarves and Moon.
It may be related to the forces of Water.