Nothing would worry your father more than to feel you were unhappy.

Do try, for his sake.
You can't refuse his request, can you ?" "No," said Kitty mournfully, "I can't.

I--I will try, but--it is very hard to begin at once, isn't it?
One is frightened and unhappy before one knows one is going to be, and then it is so hard to forget it again and try to feel brave and happy, and all that sort of thing; and oh, it does seem so dreadful that father should be ill, and have to go away from us.

I can hardly believe it." "You must try not to think of it in that way, dear, but think that he has been ill for some time without being able to do anything to make himself well again, and that now he is about to be cured, and if he has rest and change and an easy mind every day will see him a little stronger and happier.

He has worked hard and long, and often, probably, when he has been feeling quite unfit; but now he is going to have a real rest, and to enjoy himself.