From publisher blurb:
A legendary paladin is holding a retirement party and the heroes are invited. Little do they know, the paladin's arch rival, the master vampire Lucian Hargrave, has a special retirement gift for the paladin.
The heroes must foil Lucian's plan and make it out alive in this one-page adventure that is filled with social intrigue and a horror-story twist.
This adventure is broadly intended for a group of 4-6 11th levl players but can be easily scaled up or down to suit your party.