Carmagnola strutted a little. 'It was a deep game. But we are at the last move in it. If you mistrust this Bellarion ...'

'Mistrust him!' She laughed a bitter little laugh, and she poured forth the tale of how once he had been a spy sent by Theodore to embroil her, and how thereafter he had murdered her one true and devoted friend Count Spigno.

Feeding her mistrust and bringing Gian Giacomo fully to share it, Carmagnola conducted them to Milan and procured audience for them with the Duke.

Filippo Maria received her in a small room in the very heart of the fortress, a room to which he had brought something of the atmosphere of his library at Pavia. Here were the choicely bound manuscripts, and the writing-table with its sheaves of parchment, and its horn of unicorn, which as all the world knows is a prophylactic against all manner of ills of the flesh and the spirit. Its double window looked out upon the court of San Donato where the October sunshine warmed the red brick to the colour of the rose.

He gave her a kindly welcome, then settled into the inscrutable inertia of an obese Eastern idol whilst she made her prayer to him.

When it was done he nodded slowly, and despatched his secretary in quest of the Prince of Valsassina. The name conveyed nothing to her, for she had not heard of Bellarion's latest dignity.

'You shall have my decision later, madonna. It is almost made already, and in the direction you desire. When I have conferred with the Prince of Valsassina upon the means at our command, I will send for you again. Meanwhile the Lord of Carmagnola will conduct you and your brother to my Duchess, whom it will delight to care for you.' He cleared his throat. 'You have leave to go,' he added in his shrill voice.

They bowed, and were departing, when the returning secretary, opening the door, and holding up the arras that masked it, announced: 'The Prince of Valsassina.'

He came in erect and proud of bearing, for all that he still limped a little. His tunic was of black velvet edged with dark brown fur, a heavy gold chain hung upon his breast, a girdle of beaten gold gripped his loins and carried his stout dagger. His hose were in white and blue stripes.

From the threshold he bowed low to the Prince and then to Madonna Valeria, who was staring at him in sudden panic.