Spooky DnD One-Shot Adventure - Spooky

The characters are a group of ghost investigators with a covered wagon, investigating a mystery. A character is accompanied by an annoying sibling.
It is at a traveling circus which is associated with ancient magic.
There are a family of mimics who have recently moved in. And a blind aristocrat wants to survive a night at a foreboding castle.
At some point a drunk relative of a character arrives.
As the adventure progresses the characters receive a series of visions

The characters are friends and family of an adventurer, gathered for a funeral. A character thinks there is a big conspiracy.
It is at an underground tomb complex which has a secret evil shrine.
There are blights creating a strange garden. And an alchemist is attempting to finish a hideous golem.
At some point someone discovers a trail of blood.
As the adventure progresses the time of a bloody ritual approaches

The characters are friends and family at the celebration. One or more characters is currently is carrying a disease.
It is at an underground vault which was the site of several murders.
There are a group of scarecrows trying to stay undiscovered. And a desperate thug seeks to kill a mind flayer by dawn.
At some point it starts or stops snowing.
As the adventure progresses a thunder storm grows in intensity

The characters are members of a secret society gathering for an initiation. One or more characters is currently cursed.
It is at a magical laboratory which gives nightmares to any who try to sleep there.
There are a mismatched group of talking beasts sheltering for the night. And a few creatures are inhabited by intellect devourers who seek new hosts.
At some point it starts to snow.
As the adventure progresses the time of a bloody ritual approaches

The characters are members of a secret society gathering for an initiation. Two of the characters have a bet about the evening.
It is at a magical laboratory which has a garden of huge vegetables.
There are a gang of pirates sheltering for the night. And a honourable titan seeks to defeat a ruthless bard.
At some point it starts to rain.
As the adventure progresses signs of an apocalypse manifest