Mrs. Petty was a stout, plethoric woman, with an aggressive manner and a loud, common voice, who probably had been a Margate lodging-house keeper of the worst description. She was a born bully, and within ten minutes of her entry into the house Tim learned to loathe her with all the fervour of an Irishman, impatient of restraint in any form.

Mrs. Petty tried similar tactics and treatment on Lesbia, but was met so firmly, and put in her place so quietly, that--being a coward at heart, as all bullies are--she left the girl as severely alone as was possible, while executing Mr. Hale's instructions. These were to keep a strict eye on his daughter, and to prevent the intrusion of George Walker. Mrs. Petty, after several rebuffs, contented herself by watching from afar, and managed by always being on the spot when Lesbia least expected her, to fulfil her contemptible duty. For the rest of the time she worried Tim and looked after the domestic economy of the cottage.

The Shadow, as became his nickname, was a less aggressive personage. He was really called John Canning, and formerly had acted as valet to Captain Sargent. But that gentleman, being anxious to marry Lesbia whom he greatly admired, and hating George as a too-handsome and over-young rival, had suggested to his friend Hale that Canning should act as an inoffensive dragon to keep away the young man. Hale quite approved of this, as Canning could guard the garden, while Mrs. Petty kept watch on the girl in the house itself. Canning, therefore, glided unostentatiously into his position and, although Lesbia disliked the creature because he carefully kept George away, she had not the same hatred for him that she cherished for Mrs. Petty. At his worst Canning was a harmless individual, condemned to do the dirty work of others, because he had not sufficient brains to earn an honest wage in an honest manner.

His nickname had been given him because of his marvellously thin looks, and these were certainly remarkably noticeable. At one time, as he confessed to Lesbia, he had exhibited himself in a travelling caravan as The Living Skeleton, but having slightly increased in weight he had been discharged. What his leanness must have been originally it is hard to say, as even now, he was but skin and bone and, being tall, looked like a line--that is, he was length without breadth. His hands resembled a bird's claws, his legs were like sticks, and his skull would have served for a death's head, so devoid was it of flesh. With his lean, clean-shaven face, with his straight, jet-black hair, which he wore rather long, and with his skinny, lengthy, narrow figure encased in shabby broad-cloth, he looked positively uncanny, and rude boys made remarks about him when he walked abroad. He glided about like a shadow, haunted shady corners like a shadow, and spoke in a whisper as a shadow should. The name fitted him exactly, and he looked a creature of the night, quite out of place in the cheerful sunshine.

Lesbia did not approve of him at first, for obvious reasons, and even disliked him actively when she found how he dogged her footsteps. But it so happened that the gods chose to turn her heart to a friendless man, and the consequences of the change were more far-reaching than she guessed at the moment.

The days went by very heavily, since her heart was with George and she could not see him. Certainly she contrived through the ever-faithful Tim to get a note transmitted to him--the same that George read on the river. And under cover of Tim's name he sent an answer which assured her that he was still faithful and still loving and ever hopeful of better days. Lesbia carried about that letter in her bosom day and night and read it when she felt particularly down-hearted, which happened not infrequently. She also waited and she also hoped. Then an event occurred, which in after-time showed how mysteriously things work out to their hidden ends.

The Shadow fell ill in spite of the warm summer weather. Being of a sickly constitution, he unexpectedly caught influenza, and was forced to go to bed in the little room near Tim's sanctum. Hale, who had a horror of sickness, at once decided to turn him out; but Sargent, also afraid, refused to permit the valet to return to his Cookham house. There appeared to be no refuge for the miserable man but the hospital or the workhouse, until Lesbia suddenly asserted herself and insisted upon nursing him back to health. Mr. Hale objected, but his daughter, for the first time in her life remained firm and, having already sufficient troubles on his hand without creating more, he yielded in the end. Moreover, he thought that acting as a sick-nurse would give Lesbia something to do and take her thoughts away from George. So she was permitted to nurse Canning, while Mr. Hale betook himself to Tait's sumptuous mansion at Henley.

Mrs. Petty declined to look after the sick man, so Lesbia took full charge of the case, and was assisted by Tim. Not that Tim approved of The Shadow: but, being tender-hearted, he considered him a poor creature, and so acted the part of the Good Samaritan.

Canning grew delirious and seemed in danger of passing away: but Lesbia set herself to struggle with death, and in the end she conquered.

When the man was sane again and rapidly regaining his strength, Tim told him all that the young mistress had done. It was then that the Irishman saw two big tears roll down the thin cheeks of the spy.