Tesserae is new to me - I don't remember it from the book. I wonder if it's a real word?
I knew them except tesserae too! :) Did she make it up for the book, or did it already exist?
Bermudaonion Libby- yes, it seems to be a real word.Tesserae-(definition by the Free Online Dictionary)One of the small squares of stone or glass in making mosaic patterns.
I've read THe Hunger Games, so had come across these words.