‘The polka. Young people, who always dance, are ecstatic about it, and old people, who have not danced for years, have begun to dance again, on its account. All share the excitement. It arrived in London only some few months ago—it is now all over the country. Now this is your opportunity, my good Margery. To learn this one dance will be enough. They will dance scarce anything else at that ball. While, to crown all, it is the easiest dance in the world, and as I know it quite well I can practise you in the step. Suppose we try?’

Margery showed some hesitation before crossing the stile: it was a Rubicon in more ways than one. But the curious reverence which was stealing over her for all that this stranger said and did was too much for prudence. She crossed the stile.

Withdrawing with her to a nook where two high hedges met, and where the grass was elastic and dry, he lightly rested his arm on her waist, and practised with her the new step of fascination. Instead of music he whispered numbers, and she, as may be supposed, showed no slight aptness in following his instructions. Thus they moved round together, the moon-shadows from the twigs racing over their forms as they turned.

The interview lasted about half an hour. Then he somewhat abruptly handed her over the stile and stood looking at her from the other side.

‘Well,’ he murmured, ‘what has come to pass is strange! My whole business after this will be to recover my right mind!’

Margery always declared that there seemed to be some power in the stranger that was more than human, something magical and compulsory, when he seized her and gently trotted her round. But lingering emotions may have led her memory to play pranks with the scene, and her vivid imagination at that youthful age must be taken into account in believing her. However, there is no doubt that the stranger, whoever he might be, and whatever his powers, taught her the elements of modern dancing at a certain interview by moonlight at the top of her father’s garden, as was proved by her possession of knowledge on the subject that could have been acquired in no other way.

His was of the first rank of commanding figures, she was one of the most agile of milkmaids, and to casual view it would have seemed all of a piece with Nature’s doings that things should go on thus. But there was another side to the case; and whether the strange gentleman were a wild olive tree, or not, it was questionable if the acquaintance would lead to happiness. ‘A fleeting romance and a possible calamity;’ thus it might have been summed up by the practical.

Margery was in Paradise; and yet she was not at this date distinctly in love with the stranger. What she felt was something more mysterious, more of the nature of veneration. As he looked at her across the stile she spoke timidly, on a subject which had apparently occupied her long.

‘I ought to have a ball-dress, ought I not, sir?’

‘Certainly. And you shall have a ball-dress.’