Suzanne Collins said this quote

“ I've been down by the stream collecting berries. Would you care for some?I would, actually, but I don't want to relent too soon. I do walk over and look at them. I've never seen this type before. No, I have. But not in the arena. These aren't Rue's berries, although they resemble them. Nor do they match any I learned about in training. I lean down and scoop up a few, rolling them between my fingers.My father's voice comes back to me. Not these, Katniss. Never these. They're nightlock. You'll be dead before they reach your stomach.Just then the cannon fires. I whip around, expecting Peeta to collapseto the ground, but he only raises his eyebrows. The hoovercraft appears a hundred metres or so away.What's left of Foxface's emaciated body is lifted into the air. ”