Mysterious Thief in the Manor

From: Juliette
Description: Mon ami! The Manor is under some kind of sorcery! I’m dusting every day and I noticed that my Mistress’s things keep vanishing by themselves. Why, only yesterday an incredibly rare amulet just disappeared! If I don’t get it back, my Mistress will think that I stole it. Help me find it! Don’t leave a damsel in distress!
Completed: A thousand thanks to you! This is just the item that disappeared! If not for your help, I don’t even know what my Mistress would’ve turned me into.