Daisy Brown is a thirteen year old girl with an unusual condition: her teeth won't stop growing. But that's the least of her problems. Daisy Brown is a thirteen year old girl with an unusual condition: her teeth won't stop growing. But that's the least of her problems. Daisy Brown is a thirteen year old girl with an unusual condition: her teeth won't stop growing. But that's the least of her problems. Daisy Brown is a thirteen year old girl with an unusual condition: her teeth won't stop growing. But that's the least of her problems.