Ghosts

Last year, when they were still children, they went trick-or-treating. You followed them, in case there was trouble. Next year, when they're teenagers, there could be problems—spiking the punch, necking in the corners, smoking illegal substances in the bathroom… You remember that sort of thing, don't you? Of course you do. So, this year, on a holiday that gets wilder every year, let's keep the fun under control. We'll have a Halloween party. They'll love it.

But what if guests show up who aren't on the guest list?