Weird Nights at the Wolfshead

prescriptive text:
Weird Nights at the Wolfshead is an adventure for Warhammer Fantasy Roleplay 4th Edition suitable for characters of all levels and can be easily converted to prior editions of the game.

from the introduction:
The Wolfshead Coach Inn’s warm lights and tall walls appear to offer protection against the shambling horrors of the Old World’s night but the danger within may be greater.

Characters notice things seem off. The numbers and identities of its patrons and staff are inconsistent. Rooms gutted by fire on re-entry are clean and new again. Coins depict unfamiliar or long-dead Elector Counts and Emperors. The clothing the other patrons wear is antiquated.