then she remembered her rewards , she reached around to the back of her belt and pulled a small pouch from its carrier , opening it she took out a piece of what looked like crystal rock , this was chum , a name that outriders gave to a very sweet concoction made from meadow cane , it was cut and dried and then ground up into a paste , dried again into chunks of crystal and given to children as a reward for doing their chores around camp and learning their lessons .