Well, I finally received my locket back from that girl about a week ago. Strange enough, she proved just a little bit that she wasn't totally incompetent.
I have been in Nero for so long, and for a second, I thought I had actually failed the family. Fortunately for me, I might not have. Thanks to ballet school, I have found a way to retrieve that which has been stolen from me.
I'll make sure to get it back, no matter what it costs.