Portent of Betrayal

I see them falling
I fear my own demise
A thorax, pierced by the last blade
Ending the hoax of undeath
Consuming stagnation extending
Clutching every breath
You have not been forsaken
It is I who lies in wait
For your descent
I am he who shows you kindness
Should you ever rise to the kill again
As I silently wither
My demon subsides
And my kin
Hear my laughter
Now I depart
Forever to dust