I used a warlock, dubbed The Man in Black (because people without names are scarier, and I'm a huge Stephen King fan...), to break the 6th Law, travel back in time, and change 1 key event in the PC's history a few months previous. It ensured the Bad Guys the group just defeated a couple weeks before actually
won and succeeded in what they wanted. Meanwhile, the PCs had a Halloween party and got to mingle with city NPCs.
The PCs woke up three years in the future, having memories of both defeating the Bad Guys and everything up to "present day" Halloween, as well as having memories of losing to and fighting a guerilla war against said Bad Guys for three years...needless to say, it was a weird and rough awakening.
This led to some pretty epic battling as St. Patrick's Cathedral (their last stronghold) was assaulted by the Bad Guys while one of the wizards prepared a chronomantic spell to send the PCs back to kill the Man in Black before he ever cast his original spell, which they did.
Of course...the MiB showed up again that New Years and there was time-hopping to D-Day during World War II, a future New York, and to Arthurian times to meet Merlin, and he'll be showing up one last time this coming Halloween, but I can't share the plan for that because some of my players read this forum
![Cheesy :D](https://paranetonline.com/Smileys/default/cheesy.gif)
Fun Halloween ideas:
- The Wild Hunt, of course
- Someone is trying to kill an immortal and the PCs have to save it, or the PCs have to kill an immortal
- A horror film festival or something like SPLATTERCON!!! comes to town and attracts a bunch of Fetches
- Some teens get drunk and crash a car through the wall around the local graveyard with lots of history...and suddenly there's nothing keeping in the Bad Things anymore
- The last two years, on Halloween, someone has gone on murder sprees, making them look like wolf attacks--a souped-up Loup-Garou that only transforms on Halloween is the cause, and the PCs have decided three years of murder-sprees in a row is too many.
- Jack Skellington shows up and starts spreading Christmas around town with disastrous results