I think the mystery is the mysterious murder of the women without hearts and also i think the mystery is also to find the witch?
The mystery is still in the witch killing random women and taking their hearts, and I'm assuming that same witch was the one who pretended to be Elizabeth Hogan. Also how and why Kate is a witch, I'm assuming that's connected to either her parents (as far as we know her mum wasn't a witch, so maybe she got magic from her father or from an outside source?) or the place they used to live in. Most likely her mother based on Kate's hair changing to blonde sometimes when she uses magic.
Thank you for your responses (●'◡'●)ﾉ
I doubt Kate's a witch. I think she is one of those holy people
I think she is the mentioned saintess because the witch sensor didn't sense her at all.
Can a kind person please give a rough summary of what is going on? I understand that Kate is now a noble and potentially a witch but what exactly is the mystery again? Is the mystery regarding Kate's family or smth completely different.