From the introduction:
The war is lost. In truth, the war was lost some months ago, but here in the skies above this place the final nails in the coffin of civilisation have only just been hammered.
At the behest of mongrels and their secret masters a second sun appeared in the sky over the city.
Now the sounds of life have returned to the bleached white bones of the buildings here, the sounds of rapid footsteps echoing horribly, eerily loudly.
Progress is made and in a room deep underground an artifact is discovered. A great heart, one that still beats.
Perhaps the people sent here to recover it so that the Leader may live again should have brought Geiger counters?
The other occupants of the room might have warned them, but now they exist only as shadows scorched into concrete, testament to the powers unleashed here.