Who am I?

'How long have I been here?' He wondered.

His head had been ringing with pain upon waking up. It had been dull but constant, without any signs of stopping anytime soon. No matter how hard he tried to think about how he got into his current situation, he was unable to remember a single thing from before he woke up.

Fighting through the ringing pain he had eventually managed to open his eyes. At first he had seen absolutely nothing. His eyes needed time to adjust to their surroundings. His vision was slightly altered which could only mean only one thing. Right now he was in a complete pitch black room.

It took quite a bit of time before he started being able to make out the silhouettes of the things around him. Still it was a far cry from him being able to see during the day.

'Where exactly am I? How did I get here?'