It had cupid charm if I'm correct, for the aunt.
There's a locked gate in the storeroom and a stone gate with those glowing orb in middle when activated. The orb for this one glows blue and it's in centre of storeroom. It will lead you to cupid's fountain/garden.
Pinktea has a few more games on other sites, and an online game(which you can download if you become a patreon).
So since we saved the town and Nyx, what happened to Cupid? Kinda curious, since cupid went to find Nyx and never came back. 馃槄
so... did you actually hide the key somewhere? I really can't find it 馃槄