He was riding hard and fast, the thud of his horse's hoofs resounded from the sun-baked ground. He rode for a life, the life of his child, a little chap six years old. As he urged on his mare he fancied in every moan of the wind he heard a cry of pain. His face was set and his eyes were tearless, but his heart throbbed painfully, and each pulsation seemed to increase his dread of what might happen in the homestead during his absence. In the Australian bush doctors are few and far between, and many miles have to be covered before assistance in case of sickness can be obtained.

Jim Dennis's had not been a happy life. He was practically an outcast from society, a solitary man, living in a lonely spot in the wilds of New South Wales. He had been grievously wronged, and knew it, but others did not, and the world's judgment upon him had been harsh and unjust. He hated the world, so he said, and thought he meant, it; but there was one connecting link with the past that softened his heart, and that was the little chap who lay fighting for life while he rode at a mad pace to fetch aid so necessary to save him; and the mare, with that unerring instinct which horses possess, knew she was set no ordinary task. The sun was glowing down upon man and beast, and the ground felt like hot bricks. There was no grass, for the wretched substitute in the dried shrivelled blades that nodded faintly in the wind could scarcely be designated as such.

No trees afforded a cool shade, and a stagnant water-hole or two was no temptation to drink.

Jim Dennis had several miles to go before he reached Swamp Creek, the nearest township to his lonely station.

He urged the mare on, and faster and faster she went, taxing her strength to the uttermost, and yet never faltering, her courage still high, her spirit undaunted. Her nostrils were extended and fiery red, a few faint traces of foam were on the bit, but her mouth was dry and parched as the ground she galloped over.

Her breath came in short, quick sobs, and Jim Dennis knew she would be well-nigh spent in another hour. He was not a cruel man, and he had great affection for all animals. It was mankind that he warred against, not the brute creation.

'Poor old lass,' he murmured as he patted her hot neck. 'Poor old Bess. This is a hard day's work for you old girl; but don't think me cruel. You must save his life—my little chap's life. He's dying, Bess. Do you hear—? he's dying!' He almost shouted the last words in a long wail of agony.

The mare pricked her ears at the sound, and, noble beast that she was, stretched out in a final effort.

She almost flew over the ground and even Jim Dennis, who knew her so well, was surprised.

'She knows,' he thought. 'Good old Bess! She's never gone like this before.'

There was a singing in his ears, and a monotonous, wailing cry hovered around him.

If the little chap died he knew there was nothing left for him to live for. That small life breathed hope into him, and if it were extinguished the last flicker would go out of his heart.

In the far distance he saw a small cluster of houses, shanties would perhaps be the proper word. It was the dim outline of Swamp Creek, a miserable little place, but to Jim it seemed a haven of rest and hope.

The local doctor was a curious compound of self-conceit and good nature. He had been a ship's surgeon for many years, and if he was somewhat addicted to drink, no better hearted fellow could be found for a hundred miles round.

He was stranded in Sydney, but through the aid of a brother medico of repute he managed to establish himself at Swamp Creek, where in his bachelor state he eked out an existence.

Dr Thomas Sheridan, or, as he was familiarly known in Swamp Creek district, Dr Tom, was simply idolised by the inhabitants, and this adoration was not undeserved, for it often stood in lieu of medical fees.

Dr Tom, even when in his cups, was never known to refuse to undertake any journey, no matter how far, or in what weather, or how remote the chance of payment.

Although he did not look it, Dr Tom was by no means unskilful, and he had an iron nerve which no amount of bad, fiery liquor, could shake.

It was to Dr Tom that Jim Dennis was riding, and he felt every confidence in his being able to pull the little chap through if he could only get him there in time.

That was the all-important question: Would Dr Tom arrive in time?

Nearer and nearer the mare galloped towards the township, and the doctor, whose house stood at the edge of the village, saw them coming.

He was in a good humour. That morning he had completed a difficult operation to his entire satisfaction, although the patient had alluded to him as a 'blundering old idiot,' and wondered why such men were permitted to 'adorn' the medical profession.

Dr Tom was used to strong language, Swamp Creek was famous for it, in fact the Creek had almost a language of its own. The atmosphere probably had something to do with the warmth of the expressions used by the inhabitants.

Dr Tom looked at the mare and her rider, and said to himself:

'That's Jim Dennis. Wonder what the devil he's up to, tearing about the country like a madman in this heat. He's on a "jag," I guess. Well, he'll get no assistance here, I can do with all the "jag mixture" myself.'

Jim Dennis pulled the exhausted mare up with a jerk, and, springing out of the saddle, rushed up the steps of the doctor's house.

'He's dying, Dr Tom, the little chap's dying. Come at once. For God's sake man hurry! We haven't a moment to lose. You must save him. You can save him. You will save him! He's all I have in the world.'

'What, little Willie!' exclaimed Dr Tom. 'What's got hold of him?'

'Fever, or something. He's raving. Don't stand talking. Hurry up! Get out your buggy and horses. Never mind if you drive 'em to death. I'll pay for 'em. Only get there in time.'

'I'll be ready in a crack, Jim,' said Dr Tom, as he went inside, and, in a very short space of time, the buggy, with a decent pair of horses hitched to it, was at the door.

'Leave your mare here, she's dead beat,' said Dr Tom.

Away they went at full gallop, and as the doctor's buggy dashed out of the township, people looked after it and thought it must be a desperate case for him to drive his cattle at such a pace.

'Keep calm, man; keep calm, or you'll be ill yourself,' said Dr Tom.

'I can't do it, doc, the little chap may be dead,' and Jim Dennis groaned.

'Cheer up, mate, you never know what a youngster can pull through; they'll beat a man hollow. Many's the child I have seen live when a man would have died,' said Dr Tom.

There was a gleam of hope in Jim Dennis's eyes, but it quickly faded, and he said,—

'Bad luck has dogged me all my life. There's a curse upon me, and now it's fallen on the little chap.'

Dr Tom looked at him. He did not know the history of this man's life but he guessed some of it. He was a shrewd judge of character, and in his heart he believed that Jim Dennis was more sinned against than sinning. He had heard strange stories of this lonely man, and he had more than once had a stand-up fight on his account. He liked Jim more than anyone about Swamp Creek, and he was very fond of the little chap, as Willie was called.

He meant to save the child if possible, and he had fought many a fight with grim Death and beaten him. Nothing gave Dr Tom more satisfaction than to rescue a patient from danger. It was not so much that he loved his profession as that he desired to overcome obstacles.

'Get up!' said the doctor, and laid the lash across the backs of his horses. 'It will ruin my pair, but I don't mind that. They are not accustomed to this pace.'

'You can take the best pair I have,' said Jim.

'I know that. You are not like the bulk of my patients. Cross words is the most I get from some of them,' said the doctor.

Jim Dennis smiled faintly. He knew Dr Tom did not exaggerate.

The buggy swayed from side to side and bumped up and down in a manner suggestive of an early turn over.

It was a rough country and there was only a track, made by the mail coach, which ran past Jim Dennis's place twice a week.

The doctor's buggy, however, was made to bear plenty of wear and tear, and, although it looked anything but elegant, it could stand a lot of knocking about. The last time it had been washed the Swamp Creek folk were so surprised that they turned out en masse to look at the unfamiliar operation. Dr Tom, who said he disliked publicity, had not since repeated the operation. The harness had several suspicions of bits of rope about it, and the horses were accustomed to do most of their own grooming by rolling in the stable yard. Altogether the turnout was not one to inspire confidence, but it was, nevertheless, a welcome sight to many a sufferer round Swamp Creek.

'We'll be there soon, Jim. Cheer up, old man. Don't let the little chap see you with a downcast face. Whom have you left with him?'

'Sal!'

'What! the half-caste?'

'Yes. She's a good sort.'

'Humph!' said the doctor.

'Who else could I leave?'

'No one, of course,' and Dr Tom applied the whip vigorously.

A cloud of dust rose around the buggy and they came to a stop; the sudden jerk nearly threw them out.

One of the horses was down. With a muttered curse, Jim Dennis jumped out and urged the animal to rise. The tired horse struggled to his feet and, as Jim sprang into the buggy, moved on again.

'Dead beat,' said Dr Tom; 'but he'll last to your place.'

In half an hour they saw Dennis's homestead in the distance, and again the lash came down on the horses' backs, wielded by Dr Tom's vigorous arm.

It was a moment of terrible suspense to Jim Dennis when the buggy pulled up, and Dr Tom, springing out with more activity than might have been expected, hurried into the cottage.

Jim was almost afraid to follow him.

If the little chap was dead he felt he could not bear the blow.

The minute or two he stood outside waiting seemed an eternity.

Then came a relief that was well-nigh as insupportable. It was Dr Tom who called out,—

'Come in, Jim, the little chap's alive. I'll pull him through. He's not so bad after all.'

'Thank God!' said Jim Dennis, whose prayers had been few and far between.