When Revealed, End of Gather Phase.
Unique Location. When revealed, play it to a Location of your choice. While Grandma's House is in play, any played Monster must be sent to this Location (possibly breaking the 1-Monster-per-Location rule). At the End of the Gather Phase, all players in this Location gain any 2 resources of their choice from the Supply. Discard at the end of the turn if there are any Monsters in its Location.