Sisters Eight Book 3: Georgia's Greatness

In the first two instalments of the Sisters Eight, we met the sisters (octuplets) and their eight cats. We discovered Mummy and Daddy disappeared (or died) and that to find out what happened to them, each girl must discover her power and gift. Annie and Durinda both found theirs. We also learned that the girls' nosy neighbour The Wicket is very interested in what Mummy was working on before she disappeared (or died). In this, the third book, the plot thickens: Mrs. McGullicudy, the girls' teacher, is AWOL, and the substitute teacher is too beautiful to be believed (in your narrator's humble opinion). Does her beautiful facade hide an evil soul? (These are books. Of course, it does). And Georgia makes a blunder that could keep the girls' from ever finding their parents. Are the Sisters Eight doomed to live alone forever?