They showed her a picture of their daughter, whom the the girl instantly recognized as her long-dead mother from the old picture she carried of her parents.
Excited, she proceeded to tell her grandparents everything she had been through up to an including avenging her mom at which point she expected them to be very proud of her actions.
They also decided that soon they would enroll her in special martial arts training to help hone and focus the skills she had learned from the wolves.