Tro Virus + Birthday

I had to battle a virus on my laptop. A friend sent me a file to down load and blam the battle was on. I won in the end or did I? My oldest son's birthday party is still going on because it includes a sleep over, for three of the his friends. What the hell was my wife thinking. I have an idea to tell a ghost story to them that is so scary that they will all start crying and want to go home.