'Why you know what I told her. I am not sure about papa; but the rest of us don't boast of infallible wisdom.'

'Do you mean that he does?' said Duke, drily. At which
Primrose laughed. 'Have you been asleep, Miss Hazel?'

'Beyond reach of all earthly things. Have you?'

Rollo remarked that he never got so far as that.

'No,' said Primrose, 'I never saw such a sleeper. He'll be sound asleep, sound and fast; not dreaming nor stirring; and if there comes the least little sound that there oughtn't to be, he's up and broad awake and in possession of all his senses in a minute.'

'How do you know?' said the subject of this description.

'I know,' said Primrose. 'Thunder wouldn't waken him; and the turning of a key in a lock would—suppose it was a time or place when the lock ought not to be turned.'

'Very interesting details!' said Rollo. 'They may be useful in the study of psychology—or physiology. Which is your favourite study, Miss Hazel?'

'Whichever will throw the most light upon this; Prim, can he also detect "the least little sound that oughtn't to be,' when there is none at all?' said Hazel thinking of last night.

'No, he can't,' said Rollo, shaking his head. 'That's a physiological question. But here is one in psychology: Can a person be sensible of an unknown presence when yet there is none?'