Her Perilous Mansion – Sean Williams (2020)

In a strange mansion miles from anywhere, an orphan named Almanac and a twelfth daughter named Etta find themselves working – and bickering – side by side in the largely deserted rooms. But soon they realise that the house and its inhabitants are not quite what they seem, and there’s more at stake than just their jobs. Can they solve the puzzle of Her Perilous Mansion before it’s too late?