I love Halloween. I have my own Halloween web site. (www.halloweenproject.com).
Every year I plan to run a Halloween-themed adventure, but I never have time to write one. I have purchased every October issue of Dragon I can get my hands on, but I haven't really noticed whether the October issues of Dungeon follow the same "Halloween" ambiance every year.
What are the best "Halloween-themed" Dungeon adventures?
I have run a Monster Mash for the past few Halloweens at my FLGS. I can send some of those to you if you want (give me an email). Monster Mash means I pick a theme and everyone plays a monster character with some class levels into that theme. I keep telling myself I should submit the outlines to Dungeon...