The art of negotiation

O Blond and Spruce are here today, because it's a school inservice day, and the four kids, after an hour or so of happy play, came to an impasse. The girls wanted to play House, and O wanted (according to Duchess) to play something loud and rowdy, like Avalanche. I left them to it, and five minutes later, they started playing a game in which the girls are a family in a house... A house occupied by a NINJA GHOST!