Wikia

The Pale Realm leads to the White Castle of Looking Glass Land, a home to life-size chess pieces in in American McGee's Alice. The setting is similar to the surface of a chessboard. The White pieces join Alice in the fight against the Red pieces, a deviation from her normally unhelpful "allies" from earlier portions of the game. The White pieces are lead by the White King and White Queen, who are in a never-ending battle with the Red King.