Checkmate. Septimus Series, #3

Rhitha is miserable - until she meets Bina. Rhitha's sister has been bullying her all her life. But when they move to Ruph and she makes a new friend in Bina, Rhitha begins to see that there is more going on in her family than meets the eye. There is a secret nobody suspected... Things come to a head between the sisters in a clash that draws in everyone around them. Are the peculiar forces at play in Ruph responsible for fanning their conflict? Who is the mysterious stranger that appears at Grandmother's door in the middle of the storm? And can Bina help Rhitha find the strength to stand up to the bullies and become who she is meant to be?It might all hinge on a chess game...