The effort to save Erj’s Sun includes members of each Erjan race, representing many scientific communities. However, the endeavour was originally conceived by the nine suneater clans, and they remain an outsized presence among those working to avert the hypothezied catastrophe. Of these clans, Last Breath is most considered the true initiator.

One of four clans whose nomadic paths are confined totally to the Western Waste, Last Breath is the only which dispenses entirely with suneater augury that the end of Erj’s Great Day is imminent and unavoidable, and that submission to Night is to be welcomed. Rather, Last Breath adopts a dissenting interpretation of the data gathered, and of the resulting prognosis: that there is still time to live—to forestall Erj’s Night—and that the highest virtue is to give one’s life in the attempt to do so.