‘Yes, I do,’ she said promptly. ‘Now.’

‘Well, I don’t,’ was the millionaire’s laconic response; but perhaps he was thinking of his own situation in the lift.

‘Do you not think we might investigate a little further,’ said the Prince judiciously, as he cracked a walnut, ‘just a little further—and then, if we fail to accomplish anything, there would still be ample opportunity to consult the police?’

‘How do you suggest we should begin?’ asked Racksole.

‘Well, there is the house which Miss Racksole so intrepidly entered last evening’—he gave her the homage of an admiring glance; ‘you and I, Mr Racksole, might examine that abode in detail.’

‘To-night?’

‘Certainly. We might do something.’

‘We might do too much.’

‘For example?’

‘We might shoot someone, or get ourselves mistaken for burglars. If we outstepped the law, it would be no excuse for us that we had been acting in a good cause.’