If you are looking for a place in Second Life to wear your costume and go door to door, the sim called Havenhollow is the place to be.
I think Micheal was playing a trick on this Newbie and acted being AFK for a moment.
I will go back wearing a costume...the cool thing here is all the houses are decorated for Halloween and you knock on the doors and get a treat. But watch out! Some houses will play a trick on you :)