A Girl Called Seven — Valery Keith

Like her sisters Nina and Emily, Sara is enjoying her life as a normal young woman, especially her new role as big sister to the younger children.

So when a dog-fighting ring threatens the peaceful community they have come to love, she and her sisters spring into action once more to shut it down. But once they do, they discover that some of the criminals have friends in very high places.

Now, their family under threat, all the children will band together to protect their home, no matter what that means.