The Invisible Door In a small house, a strange discovery was made when a door turned invisible. The confused homeowner couldn't see the door, but it was still functional. The door could be opened and closed, but it remained completely invisible. The local carpenter scratched his head in disbelief, unable to explain the phenomenon. The homeowner decided to keep the invisible door, considering it a unique conversation starter. Visitors were astonished to witness the mysterious invisible door and left wondering how it worked.