Where is my Halloween poster??????

I have this old poster that I have put up at Halloween time every year since I was about 10 years old. Of course I had to pack it up when I moved. I saw it less than a month ago when I was looking for something else. Now I can't remember where I saw it and I can't find it after turning my apartment upside down. Now the trick or treaters won't know to come to my apartment on Monday night. Of course my poster would disappear the day I bought a bunch of candy to give out, too. Someone obviously wants me to be miserable.