New Rules for Unwelcome Guests
Deal 1 or more Unwelcome Guests face up to the table's center at the start of the game, setting the rest aside.
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.
Persistent effects on Guests and Modifiers continue after the card with the effect is buried beneath another card, as long as you can see the persistent icon and the portrait. The effect ends only when the Character is killed or gets a new persistent effect.