Talk:Season 4/@comment-44480665-20191209134435/@comment-10390252-20191209141237

I'll speculate that this is the sort of lock that will only open when you know what key you need to use. Working out what that key is will be one of Marinette's plot threads in the season and will likely be something that only she can do. Even that visiting Guardian Monk probably will only be able to offer general advice.

I suspect that that Guardian sets the style of the box, so I think that the Miracle Egg may be more like something out of a sci-fi animé and will respond more like a modern computerised safe than an ancient Chinese puzzle box.