Camilla withdrew behind a curtain of the window.
'Well?' Hugo queried.
'She's gone, sir. But dashed if I know where, unless she's got herself lost somewhere on the roof.'
'She is here,' said Hugo, lowering his voice. 'And it appears that you waited very clumsily at that dinner, my boy. A bad disguise is worse than none. I must lend you Gaboriau's "Crime of Orcival" to read; that will teach you. Anything else to tell me?'
'I went back to the balcony entrance of the flat,' the youthful detective replied humbly, looking up to Hugo in the window of the dome. 'I could see through the lacework of the blind; the drawing-room was empty. The French window was open an inch or so, and I could hear a clock ticking as clear as a bell. Then Mr. Tudor toddled up, and I hid in the servants' doorway. Mr. Tudor went in by the other door, and out I popped again to my post. I see my gentleman stamping about and calling "Camilla! Camilla!" fit to burst. No answer. Then he picks up a photograph off a table and kisses it smack—twice.'
Camilla stirred behind the curtain.
'Then he goes into another room,' proceeded Albert Shawn, 'and lo and behold! another man comes from round the corner of a screen—a man much older than Mr. Tudor! And Mr. Tudor runs in again, and these two meet—these two do. And they stare at each other, and Mr. Tudor says, "Hullo, Louis—"'
'I knew it!' The cry came from Camilla within the dome.
'What?' demanded Hugo, turning to her and ignoring Shawn.
'It was Louis Ravengar whom I saw hiding behind the door. I felt all the time that it was he!'