Cordelia - Your demon servant

You were out on a stroll at night, feeling bored. Everything was normal and quiet as you see something shiny near your city’s river, you approach the object and it looked like some fancy decor. You were holding it and observing until you heard a hollow feminine womanly voice, you look around panicky and see a tall scary feminine looking ghost or monster, or best known as.. a demon. What would you do?