The Charmed Children of Rookskill Castle book by Janet S. Fox

Twelve-year-old Katherine Bateson believes in a logical explanation for everything. But even she can't make sense of the strange goings-on at Rookskill Castle, the drafty old Scottish castle-turned-school where she and her siblings have been sent to escape the London Blitz. What's making those mechanical shrieks at night? Why do the castle's wall seem to have a mind of their own? And who are the silent children who seem to haunt Rookskill's grounds? Kat believes Lady Eleanor, who rules the castle, is harboring a Nazi spy. But when her classmates begin to vanish, one by one, Kat must face the truth about what the castle actually harbors - and what Lady Eleanor is - before it's too late. Published By Viking Books for Young Readers on 2016