Where does the Purple Key go?

[AriaOnline]

Does anyone know if you can use the purple key in Miss Knives’ House? Or if it’s just something you can use later? I’d appreciate no spoilers for the later option though!

[Saiaoi]

It's used to unlock the door in the library if you haven't found the lockpick.

[Scheuchevogel]

I always used the lockpick. Where can I find the purple key?
Also, does that mean that in theory you can leave Sai in his cage? With the lockpicks you had to free him, so unlike other things I didn't vary this in my walkthroughs.

[SailorofworldSSeaS]

The way to find the Purple Key you count the key paintings and you go in to the bedroom where there is a locked box on the mirror left down corner to which the code is 018 beacuse that's how many key paintings there are I think and aboust Sai I think he still gets freed in the end even if you don't free him from the cage but I haven't tried for myself

[Scheuchevogel]

Oh, thanks a lot. I always noticed the key pictures and tried interactivating with them with all kind of items, but never tried that.

[SailorofworldSSeaS]

Happy to share all the knowledge I know :D

[kira]

Originally posted by Scheuchevogel:

Also, does that mean that in theory you can leave Sai in his cage? With the lockpicks you had to free him, so unlike other things I didn't vary this in my walkthroughs.

I tried it and yes, you can leave sai in the cage, but he comes back after we defeat miss knives (before burning all the items and fighting with miss knives, i checked the cage area and he wasn't there, which means he probably managed to escape the cage alone somehow) basically nothing changed except for short dialouge where sai asks us if we defeated miss knives, and tells us to not leave him in the cage next time.

[Scheuchevogel]

Interesting, thanks.
In the save files it's visible that the game remembers a lot of choices, I imagine this is one which will be remembered when starting chapter 2 from a chapter 1 save. If the game will later make events/choices dependent on relations with characters, this must make a difference.