Gloom: Unwelcome Guests...
Guests expansion adds one player and 55 cards to the game. New effect icons on cards allow their special effects to continue to be active even if covered by another card. An effect ends only when the attached character is killed. Also inside are five Unwelcome Guest cards. Deal one or more face up to the table’s center at the start of the game. Guests “follow” the card types noted on them; no matter where it currently is, a living Guest immediately moves to join the family of the character on which one of its “trigger” cards is played. All its Modifiers are moved with it, and it’s considered a member of that family until it moves again. This may delay the game’s end if a final play draws a Guest to the near-winner’s family. (Source - Boardgamegeek.com)