‘Of course he can’t; he doesn’t know as much Italian as I do. Can’t these fools tell an American citizen when they see one? I’ll teach ’em to go about chucking American citizens in jail. I’ll telegraph the consul in Milan; I’ll make an international matter of it!’

He fumed up and down the terrace, while Constance rose to her feet and followed after with a pretence at pacification.

‘Hush, Dad! Don’t be so excitable. It was a very natural mistake for them to make. But if Tony is really what he says he is it will be very easily proved. You must be sure of your ground, though, before you act. I don’t like to say anything against poor Tony now that he is in trouble, but I have always felt that there was a mystery connected with him. For all we know he may be a murderer or a brigand or an escaped convict in disguise. We only have his word, you know, that he is an American citizen.’

‘His word!’ Mr. Wilder fairly exploded. ‘Are you utterly blind? He’s exactly as much an American citizen as I am. He’s——’ He stopped and fanned himself furiously. He had sworn never to betray Tony’s secret, and yet, the present situation was exceptional.

Constance patted him on the arm. ‘There, Dad. I haven’t a doubt his story is true. He was born in Budapest, and he’s a naturalized American citizen. It’s the duty of the United States Government to protect him—but it won’t be difficult; I dare say he’s got his naturalization papers with him. A word in the morning will set everything straight.’

‘Leave him in jail all night?’

‘But you can’t do anything now; it’s after ten o’clock; the authorities have gone to bed.’

She turned to Gustavo; her tone was reassuring.

‘In the morning we’ll get some American warships to bombard the jail.’

‘Signorina, you joke!’ His tone was reproachful.