In the game Small World, do races with the Spirit special power persist in decline indefinitely, or do they get bumped off the board after the player has two additional races go into decline?
Here is the situation we faced in a 2-player game I just played. I started the game with Spirit White Ladies, grabbed and managed to hold five spaces through my opponent's turn, and pushed them into decline on my third turn. Because White Ladies cannot be conquered while in decline, these five spaces were unassailable and significantly shrunk the board. My second race--Hill Tritons--suffered heavy attrition and went into decline fairly early, but the Spirit special ability kept my White ladies on the board. When my third race--Flying Dwarves--went into decline near the end of the game, the question arose as to whether the White Ladies and the Tritons should be removed from the board, or just the Tritons.
I think under most circumstances this wouldn't be an issue because most races can be eliminated in decline and opposing players normally would try to quickly wipe out the Spirit race in decline. However, in this case the White Ladies' racial immunity to conquest in decline prevented them from being eliminated as I sent two more races into decline after them. So should my White Ladies have stayed on the board after the Dwarves went into decline and the Tritons bowed out?
(In this game, we ruled that the White Ladies stayed and I won thanks in large part to shrinking the board and easily controlling the three spaces the White Ladies had blocked off with Flying Dwarves... but was it the right call?)