She stands up and takes her dress off in the middle of a sentence, which is how you find out that she has been planning this since the third night.

MalfoidHere is the test. If I can stand in front of you like this and not lie about anything, then the circle will hold.

She does not cover herself. She is pale and thin and absolutely furious about being looked at, and she does not look away.

MalfoidWell? Tell me I am not the only one in this school who has been lying about something.