Dawn 10000

Dawn 10000 was one of the universes within the multiverse known as the 10,000 Dawns.

Under unclear circumstances, it abruptly ended, undergoing heat death in moments. Its Earth was destroyed in the process, with only one city block's worth of people being evacuated in time by Coloth, a visitor from a distant universe, on the back of the birdhemoth Rich. Although offered other options such as the SSRP, many of these survivors elected to stay in Spiral, the artificial hub reality used as its headquarters by the Dawn organisation. Among them, a team of linguists busied themselves with trying to coin a name for their universe that would allow it to truly be remembered as more than a number, finding the "Dawn 10000" designation distasteful. Another preferred to tend to a garden, and also helped Coloth and Rich on their later mission of stopping the plague of Invisible Infernos. The gardener would eventually find a new home in the beings of light's Dawn after the crisis resolved itself. (PROSE: Sonnenblumen)

Behind the scenes
Dawn 10000 and its destruction played into the overall arc of How to Survive the Winter.