Seven hundred years ago, technology gave us the keys to the cosmos, and we flew and teleported and phased out into the stars, arms spread, minds open, ready to meet the neighbors. What we found was a graveyard. Hundreds of once-civilized systems, all absent of life. Not destroyed, not nuked, or glassed, or buried beneath volcanic residue so completely that it would justify a whole world gone dark. Just...lifeless. Dead. And we don’t know why.