The Great Forest in the Barony of Hallucination can be a particularly frightening place this time of year.
Vanchauslurk 
A lot more things than Vanchau are lurking in Vanchauslurk, although perhaps none as inscrutably sinister. On Halloween, anything can happen - from it being declared Day of the Dead to it being declared Switching Day to it being ignored completely to DEMONS RULING THE EARTH! The possibility of getting your chronology completely messed up lurks behind the innocent sounding moniker "Daylight Savings Time" on the 6th, and the month of Octember lurks on a completely different and much better calendar.