"I didn't know that. But she got better. I remember seeing her at the hay ride the last week I was in the Golden Moon pack. She seemed okay then. But what does that have to do with what Lily and my feeling of abandonment?
"I am getting to that," Ma laughed. "I know you remember your biology lessons. Our bodies are made up of trillions of cells grouped to form tissues and organs. Genes inside the nucleus of each cell tell it when to grow, work, divide, and die. Normally, our cells follow these instructions and we stay healthy."
"But when there is a change in our DNA or damage to it, a gene can mutate. Mutated genes don't work properly because the instructions in their DNA to get mixed up. This can cause cells that should be resting to divide and grow out of control, which can lead to canc
