Hello

There was a man standing in the very corner of the room behind me, standing on the bed where it was pushed into the corner, just a pale figure in the deepest part of the shadows. He had not been there when I was locked in, I was sure of it, but I did not know how else he could have entered. The door was locked and the window was barred.
...
He raised his left hand and extended it towards the window. His hand began to glow softly with the most distressing light. It had no colour, but was all colours. It was a hue one could only mix up in a nightmare.
The bars inside and outside the window melted, and ran down the sill and wall like liquid tar. I heard them hiss and burn the wood and the floor. I could feel the heat and smell the scorching. The glass in the window turned to dust and blew away. Rain streamed in through the gap, turning to steam. More light flooded in now that the filthy window had evaporated.



"Pariah", Chapter Forty One