The Clouded Void

Unsuccessful cooperation gets the weak dead very quickly, unless they are very fast, very good at hiding and very clever. Pegasi ponies are often the first, rarely the second and sometimes the third, but they also need to stop for sleep. But there are lone wanderers around, ones that are too violent, unpredictable or antisocial to live with a community, or merely lucky, fast and clever enough to survive when a settlement was destroyed.

These pegasi and mephits continue working as Ranna sleeps, getting into the hang of the work. As some head off to sleep, others come to take up their jobs; the mephits don't sleep, however. Or not as regularly as the ponies, at least. There's not a real cycle to the shifts, though; they're individuals, and don't have a coherent system of when to sleep and when not to.