But she did not smile as she put the question, and it struck him that she looked a little dull.

'Why, with Dick, of course,' he returned quickly. 'Don't you know, the poor fellow is terribly out of health; his father is very anxious about him. He has been over-working, and I fancy there is some sort of love-affair as well; at least, the Doctor hinted as much. Anyhow, he is to strike work for six months; and as he wanted a travelling companion, I offered my humble services.'

'But you will not be away all that time?' she asked, with visible anxiety.

'Six months is not so very long, is it?' he returned coolly; 'and I do not see how we shall work out our plans even in that time. We are to do Switzerland thoroughly and to spend at least a month in the Engadine; then there are the Swiss Tyrol and the Italian lakes, and afterwards Rome, Florence, Venice, and Naples. If Dick tires of it and throws it up, I can still keep on alone. I want to do the thing properly for once in my life, and I have even thought of Greece and the Holy Land the following spring.'

But again she interrupted him, and this time he saw the pained look in her eyes.

'You will leave us for all that time—you will let him come back alone, and go on by yourself? Oh, Michael! what shall I do without you? You are more necessary to me than ever now.'

She so seldom thought of herself that this speech took him by surprise. There was a tone of reproach in her voice, as though she thought him unkind for leaving her. Michael was not his ordinary calm self that afternoon. For months he had dreaded to find himself alone with her; but now the very sweetness of that loving reproach seemed too much for him.

'A man is not always master of himself,' Cyril had once said; and at that moment Michael felt that it was no longer possible for him to be silent. He could bear it no more.

'I shall stay away,' he said in a strangely-suppressed voice, 'because it is only right for me to do so—because it is my duty to leave you.'

'Your duty to leave me,' she faltered. 'Oh, Michael, why?'