Silently they went up together. Formosa gave two long rings, the known signal.

'Who is it?' asked a muffled voice, speaking through the keyhole.

'It is I, doctor; open, please.'

'But you are not alone.'

'It doesn't matter—open.'

'If you are not alone I will not open, as you know,' Trifari said angrily from inside.

'Open the door; it will be better for everyone, doctor,' the Marquis di Formosa negotiated. 'If you do not open the ruin will be greater. Don Gennaro Parascandolo here knows all; he wants to go to a magistrate.'

'At any rate, I am not going away,' Parascandolo said from outside. 'I will only go for the purpose of calling the police.'

'Oh dear! oh dear!' Formosa muttered with a senile quiver.

A step was heard going and coming, then a slow rattle of chain-links, and Trifari's face, with long, red hair growing unevenly on it, showed in a slit of the door.