The last page of history (sexton beetle)

On the screen the credits roll    
who will be the next director  
endangered earth as the titles scroll    
will god be our protector?    
    
I gaze into my crystal ball    
and I see no human form    
that harbinger has reaped its toll    
no hand to scribe, all gone before    
   
The shelf where history was all wrote    
all archived, the virus edited all books    
just evolutions right to cope    
 nature, all man's seasons now revoked    
   
In that spring clean,  past wiped away    
 the alien that came was it man made ?    
assign our planet to a mass grave    
to start again on a clean page    
   
But who is there to wield a spade    
read the last rights for the planet    
rewind and delete all saved    
the sexton beetles hunger vanish