They stick the key in the lock, and it creaked open. Harry, Ron, and Hermione, followed by Mayumi, entered the next room.
They stood at the edge of a huge chess board, and three heads slowly turned to look at the last.
"You knew, didn't you?" Ron said, rather miserably, "You knew."
Mayumi's blue eyes twinkles.
Um, no, I play Minecraft. I just know the dance.