Piero is haunted in his dreams, which bring him both inspiration and troubling visions.
Piero's Dark Dreams
DishonoredTranscript
The inspiration is coming faster. My mind works faster at night than it does during the day. I'm being swept away and I can no longer tell if it's genius or madness. When Corvo arrived, he brought some force from the Void with him. Or perhaps I am more brilliant than even I had supposed.