She named each of them after numbers in the order they were born. There was a fire and all of them died except Ninety. Ninety went off to have kids of her own. They were very kind and loving. One day they found an injured dog. They took it home and nursed it back to health.
They hid the dog and never told their mother afraid she would kick the dog out . In fact they never told anyone. To keep from arousing any suspicions they named the dog “This” so the name could be used in conversation. One day This ran away.
They never saw This again. No one else knew about This. No one even knew a dog named This existed.