Dan looked about the room. He couldn't believe how wierd his sister was acting, but soon enough he knew she wasn't joking around.
The floor changed first. It became panelled, white and black, and the furniture began to transform, too. The couch, the TV, everything, changed into large shapes and positioned themselves on what was now a large chequered board.
With a poof of dust, Kat was now dressed in an elegant robe- she was a queen. But Dan didn't strike quite so lucky. His face elongated, his hands turned to hooves, and he was now a large, black horse- he was the knight.
"Now, we need some more pieces..." grinned Kat.