Im writing a story and need to explain a door that is build up of solid metal and is functioned electronically. The character is locked up in the room with that door and there seems no way out. Please help me describe the door and the SITUATION!!!!!!!!!!!!!
Expand on this; use this as a starter and modify the details to fit your story: Jake awoke to find himself in a small room, measuring perhaps 7 feet by 7 feet. The floor was rough white concrete. The walls seemed to be concrete as well, but smoother, and painted gray. The ceiling above was painted that same shade of gray. Jake couldn't tell what it was made of. He slowly looked around the room. It was well-lit with four round recessed lights made up of LED arrays in the ceiling, each covered by a metal grate. There appeared to be a small circular device--about the size of a pencil eraser--safely inside the metal grates. Those could be cameras. There were no windows. Three of the walls were completely solid--no breaks, gaps, or openings. The fourth wall seemed to have a door in it. There was a tiny gap, perhaps the width of a playing card, in the shape of a door--about three feet wide and seven feet tall. But there were no hinges, no door knob, no locking mechanism. Just a very thin gap in the shape of the door. Jake got off the and walked to the maybe-door. He tapped on wall next to the door. It felt like concrete. Then he tapped on what he suspected might be the door. It was definitely metal--colder than the wall with a slightly different feel. But it blended in perfectly with the surrounding wall. He peered more closely, but still couldn't see any hinges, knobs, or locks. Clearly, the intent of whoever had designed the room was to allow only those on the other side to open the door. With nothing visible on his side of the door, Jake guessed that entry and exit was controlled electronically. Maybe there were people on the other side--though he couldn't hear a thing. Or it was possible that the others--his guards, his captors--were miles away. Jake had no idea how he'd ended up here. And he had even less of an idea on how he'd get out.