There was a dark passage running into the heart of the mountain, but not far, because they came at once to a sealed door.
Sanders stopped a few yards from the steps and looked up at the sealed door.
He looked around, peering up at the sealed door of the summer house.
He walked over to the sealed door again and kicked it.
We had built the boat with a sealed door to go in and out.
This was the first sealed door that he had seen.
"I've got a clear lock just inside the sealed door on the top deck."
Behind them, the sealed door led out into the cold of space, where this ship's control room had once been.
Once, they were forced to wait in front of sealed door until it opened.
A set of stairs led down into the ground to a sealed door.