There was no help for it. Bill Mills was obliged to stay on duty, in the old shepherd's absence, this evening as before, or give up his post and living. He thought as bravely as he could of what lay behind the Devil's Door, but with no great success, and was therefore in a measure relieved, even if awe-stricken, when he saw the forms of the Duke and Duchess strolling across the frosted greensward. The Duchess was a few yards in front of her husband and tripped on lightly. 'I tell you he has not thought it worth while to come again!' the Duke insisted, as he stood still, reluctant to walk further. 'He is more likely to come and wait all night; and it would be harsh treatment to let him do it a second time.' 'He is not here; so turn and come home.' 'He seems not to be here, certainly; I wonder if anything has happened to him. If it has, I shall never forgive myself!' The Duke, uneasily, 'O, no. He has some other engagement.' 'That is very unlikely.' 'Or perhaps he has found the distance too far.' 'Nor is that probable.' 'Then he may have thought better of it.' 'Yes, he may have thought better of it; if, indeed, he is not here all the time--somewhere in the hollow behind the Devil's Door. Let us go and see; it will serve him right to surprise him.' 'O, he's not there.' 'He may be lying very quiet because of you,' she said archly. 'O, no--not because of me!' 'Come, then. I declare, dearest, you lag like an unwilling schoolboy to- night, and there's no responsiveness in you! You are jealous of that poor lad, and it is quite absurd of you.' 'I'll come! I'll come! Say no more, Harriet!' And they crossed over the green. Wondering what they would do, the young shepherd left the hut, and doubled behind the belt of furze, intending to stand near the trilithon unperceived. But, in crossing the few yards of open ground he was for a moment exposed to view. 'Ah, I see him at last!' said the Duchess. 'See him!' said the Duke. 'Where?' 'By the Devil's Door; don't you notice a figure there? Ah, my poor lover- cousin, won't you catch it now?' And she laughed half-pityingly. 'But what's the matter?' she asked, turning to her husband. 'It is not he!' said the Duke hoarsely. 'It can't be he!' 'No, it is not he. It is too small for him. It is a boy.' 'Ah, I thought so! Boy, come here.' The youthful shepherd advanced with apprehension. 'What are you doing here?' 'Keeping sheep, your Grace.' 'Ah, you know me! Do you keep sheep here every night?' 'Off and on, my Lord Duke.' 'And what have you seen here to-night or last night?' inquired the Duchess. 'Any person waiting or walking about?' The boy was silent. 'He has seen nothing,' interrupted her husband, his eyes so forbiddingly fixed on the boy that they seemed to shine like points of fire. 'Come, let us go. The air is too keen to stand in long.'