No one expects to fall; it is subtle, insidious.  The Blessings of the Omnissiah reinforced your body and faith, granted you the strength you needed to fight the vile xenos that tried to break you before.  But it was not enough.  As your power grew, so it seemed did theirs.  Their tactics grew more sophisticated, their strikes more accurate, their devastation greater.  Just as desperation gripped your still organic heart…

The whispers began.

True power, they promised.  A way to eliminate any horrid mortal creature that came against you.  Knowledge beyond comprehension.  Your wildest ambitions and dreams of fulfilled.  Night and day they repeated the offer; power, knowledge, strength; power, knowledge, strength… It was only a matter of time until you accepted.

Just one error for the Ruinous Powers to consume you.