I

The Sentinel is keeper and turn key of the Beast Within.
If She sleeps, the Beast will loose.
My Fortress is home also to the Sentinel, and the Beast.
And I, who am I, Dweller in the Fortress?
If I am not the Beast, and I am not the Sentinel
nor am I the Fortress
Then who am I.?

I am Sigma
The sum of the parts
I am Child to the Mother of Shadow
Spawn of Darkness and Light
Dweller
Observer
Schemer