- This conversation in Extras:
Aya: You can't let Tally know about Radical Honesty. There's no telling what she'll do if she finds out you could ruin her plans.Frizz: So let me get this straight, Aya-chan. You want me, a person who can't lie, to lie about the fact that I can't lie?Hiro: We need another plan.
- SpagBol. It turns into a Brick Joke several books later; Tally mentions the thought of it still turns her stomach.
- The first words of Uglies opens with this line:
The early morning sky was the colour of cat vomit.