It had been eighteen years since they'd seen their home world. Eighteen years since the earth had lain before them vibrant and blue. They had come home, and brought with them the water of life, salvation for a world in need. They'd left a desperate band of men with a mission, journeyed the stars as beggars, then thieves, and ultimately destroyers to return home to be heroes.
'Orbital control, this is the Lazarus on return approach, we're inbound heavy looking for our vector, over'
Nothing but silence greeted their request.
Earth was being consumed by a terrible plague when they had left, a plague that destroyed the infected from