Then she began to laugh as if at some sudden thought.

'Why do you laugh?' asked Andrea.

'I am making a comparison.'

'What comparison?'

'Guess.'

'I can't.'

'Well, I was thinking of another introduction I gave you about two years ago, which I accompanied by a delightful prophecy—you remember?'

'Ah—ha—'

'And I laughed because this time again there is an unknown lady in question and this time too I may play the part of—an involuntary providence.'

'Oh—oh!'