Fablehouse by Emma Norry

Fablehouse, a mysterious mansion surrounded by ancient woodland, is Heather's new home. Roaming the countryside with some of the other children - all with completely different heritage and varied families - who are in care there, she finds a stone tower that feels strangely magical. There they meet Palamedes, the Black knight from King Arthur's court.

He warns them that danger lurks in a world beneath their feet. Heather and friends set off to rescue children who have been taken to this threatening underworld. No child will be forgotten on their watch.

Heather and her friends need to use the talents they have been given to battle for their home.