Despite our attempts to break it, the lock would not yield.

Remember to always lock your house when you leave, or some bloke you don't know may come in, rifle through your belongings, steal any cash you've left in a treasure chest and then break your vases.

On examining it he found that the door was not a door; it had neither hinges, cross-bars, lock, nor fissure in the middle; the iron bands traversed it from side to side without any break.