What if there's a door that's always sitting there. The surface is bare. And it carries a mysterious air. No matter what people do to the door that just sits there. The next morning the door is always repaired.
Something so curious like the door. Everyone finds it a bore. After all it's just a boring old door. After seeing the damage disappear you would think people would write lore. But the door isn't interesting, the door is a bore.
The door's been places. The door has guarded libraries full of bookcases. The door has seen everything from schools to fireplaces.
Whenever the place, the door has been goes away, the door is always there insistent to stay. But eventually the door gets found and gets transported away.
The door doesn't change. The door is always a door but no one thinks it's strange. But the door moves from place to place. No one knows where or which door frame the door will choose as a base.