A hollow shambles through the halls. He had long forgotten his name, long forgotten his last life. He is just a body now. His shackles still dragged by his feet. His skin looks is like rugged leather, spotted and brown. It looks too tight for his skeleton, as if it were stretched far too thin. His eyes were glazed over orbs and looked as if they were threatening to fall out at any minute.

He went around in circles in his cell block all day long. All week, all month, all year. Every single time the other hollows cried out to him from their cells. Their ragged, bony hands stretched forth from the bars. Every time he came around, without fail. The hollow paced, his head dropped and eyes scanning the cold cobble stone.

A man in armor came around. His skin was spotted and brown too, but yet his eyes were aflame with life and character. He saw the hollow pass him by. With one swift movement his sword separated head from body went limp to the floor. The man thought it as a mercy killing. He didn't bother thrusting his sword through cell bar after cell bar to kill the "person" on the other side. His sword had to be spared. It was reaching it's end and his only replacement was some hollow's sword he stole.

No, he had much better things to do. He wasn't quite sure what. Something would happen. If he just kept walking surely something would happen.
And so he did.