BOOK EXCERPT Rome, September 1644 As soon as Mia opened the door Donna Olimpia came straight in, looking side to side as if to check no-one could see her. Mia extended a hand in greeting. ‘This way, honoured Signora.’ ‘What’s that smell?’ ‘Lavender, Signora. For making the linen smell sweet.’ She indicated the stairs and the woman went ahead of her, heavy feet and thick ankles under her richly embroidered black skirts. At the top Mia pointed to the door off the piano nobile