He knew his danger, but, to do him justice, he scarcely gave it a thought – any possible suffering seemed as remote and inconsiderable just then as the chance of a broken leg or collar-bone had been to him when running for a touchdown in his football days; the one idea that filled his brain was to return to Mabel triumphant with the rescued dog in his arms, and he had room for no others.

He went as directly as he could to the part of the train in which was the carriage he had occupied, and found it without much difficulty when he was near enough to make out forms through the fog; the door of Mabel's compartment was open, and, as he sprang up the footboard, he heard the train behind rattling down on him with its whistle screeching infernally, and for the first time felt an uneasy recollection of the horribly fantastic injuries described in accounts of so many railway collisions.

But there was no time to think of this; at the other end of the carriage was the little round wicker-basket he had seen in Dolly's hands at the Chigbourne waiting-room, and in it was the terrier, sleeping soundly as she had anticipated. He caught up the little drowsy beast, which growled ungratefully, and turned to leap down with it to the ballast, when there was a sharp concussion, which sent a jangling forward shock, increasing in violence as it went, along the standing train, and threw him violently against the partition of the compartment.

Meanwhile the passengers of the first train, now that the worst was apparently over, and the faint shouts and screams from the embankment had calmed down, began to make their way in the direction of the sounds, and Mabel, holding Dolly fast by the hand, forced herself to follow them, though she was sick and faint with the dread of what she might see.

The first thing they saw was a crowd of eager, excited faces, all questioning and accusing the badgered officials of both trains at the same time. 'Why was an empty train left on the rails unprotected in this way? they might have been all killed. – It was culpable negligence all round, and there should be an inquiry – they would insist on an inquiry – they would report this to the traffic manager,' and so on.

The faces looked pale and ghastly enough in the fog, but all the speakers were evidently sound in wind and limb, and, as far as could be seen, neither train had left the rails – but where was the young man who had volunteered to recover the dog? 'Oh, Mabel,' cried Dolly, again and again. 'Frisk is killed, I'm sure of it, or he'd come to me – something has happened – ask, do ask.'

But Mabel dared not, for fear of hearing that a life had been nobly and uselessly sacrificed; she could only press through the crowd with the object of making her way to the carriage where the suspense would be ended.

'There's someone in one of the carriages!' she heard a voice saying as she got nearer, and her heart beat faster; and then the crowd parted somehow, and she saw Mark Ashburn come out of it towards her, with a dazed, scared smile on his pale face, and the little trembling dog safe under one arm.

Fortunately for Mark, the fog-signals had been set in time to do their work, and the second train was fitted with powerful brakes which, but for the state of the rails, would have brought it to without any collision at all; as it was, the shock had not been severe enough to damage the rolling-stock to any greater extent than twisting or straining a buffer or coupling-chain here and there, though it had thrown him against the corner of the net-rail with sufficient violence to slightly graze his forehead, and leave him stunned and a little faint for a few moments.

After sitting down for a short time to recover himself, he picked up the terrier from the cushions on which it was crouching and shivering, having dropped from his hand at the concussion, and feeling himself still rather giddy and sick, got down amongst the astonished crowd, and came towards Mabel and Dolly as we have seen.

It was the best moment, as he thought afterwards, in his life. Every one, probably, with any imagination at all likes to conceive himself at times as the performer of some heroic action extorting the admiration he longs for from some particular pair of eyes, but opportunities for thus distinguishing oneself are sadly rare nowadays, and often when they come are missed, or, if grasped with success, the fair eyes are looking another way and never see it.

But Mark had a satisfied sense of appearing to the utmost advantage as he met the little girl and placed the dog in her arms. 'There's your dog; he's quite safe, only a little frightened,' he said, with a pleasant sympathy in his voice.

Dolly was too overcome for words; she caught Frisk up with her eyes swimming, and ran away with him to pour her self-reproach and relief into his pricked ears, without making any attempt to express her thanks to his rescuer. Her sister, however, made him ample amends.

'How can we thank you?' she said, with a quiver in her voice and an involuntary admiration in her eyes; 'it was so very, very brave of you – you might have been killed!'

'I thought at first it was going to be rather a bad smash,' said Mark – he could not resist the impulse now to make all the capital he could out of what he had done – 'I was knocked down – and – and unconscious for a little while after it; but I'm not much hurt, as you see. I don't think I'm any the worse for it, and at all events your little sister's dog isn't – and that's the main point, isn't it?' he added, with a feeling that his words were equal to the occasion.

'Indeed it isn't,' said Mabel warmly; 'if you had been seriously hurt I should never have forgiven myself for letting you go – but are you sure you feel no pain anywhere?'

'Well,' he admitted, 'I fancy I was cut a little about the head' (he was afraid she might not have noticed this), 'but that's a trifle.'

'There is a cut on your forehead,' said Mabel; 'it has been bleeding, but I think it has stopped now. Let me bind it up for you in case it should break out again.'

It was in truth a very small cut, and had hardly bled at all, but Mark made light of it elaborately, as the surest means of keeping her interest alive. 'I am afraid it must be giving you pain,' she said, with a pretty, anxious concern in her eyes as she spoke; and Mark protested that the pain was nothing – which was the exact truth, although he had no intention of being taken literally.

They had gone down the embankment again and were slowly crossing the dim field in which they had first taken refuge. No one was in sight, the other passengers being still engaged in comparing notes or browbeating the unhappy guards above; and as Mark glanced at his companion he saw that her thoughts had ceased to busy themselves about him, while her eyes were trying to pierce the gloom which surrounded her.

'I was looking for my little sister,' she exclaimed, answering the question in his eyes. 'She ran off with the dog you brought back to her, and it is so easy to lose oneself here. I must find out where she is – oh, you are ill!' she broke off suddenly, as Mark staggered and half fell.

'Only a slight giddiness,' he said; 'if – if I could sit down somewhere for a moment – is that a stile over there?'

'It looks like one. Can you get so far without help?' she said compassionately. 'Will you lean on me?'

He seemed to her like some young knight who had been wounded, as it were, in her cause, and deserved all the care she could give him.

'If you will be so very good,' said Mark. He felt himself a humbug, for he could have leaped the stile with ease at that very moment. He had very little excuse for practising in this way on her womanly sympathy, except that he dreaded to lose her just yet, and found such a subtle intoxication in being tended like this by a girl from whom an hour ago he had scarcely hoped to win another careless glance; if he exaggerated his symptoms, as it is to be feared he did, there may be some who will forgive him under the circumstances.

So he allowed Mabel to guide him to the stile, and sat down on one of its rotten cross-planks while she poured eau-de-Cologne or some essence of the kind on a handkerchief, and ordered him to bathe his forehead with it. They seemed isolated there together on the patch of hoary grass by a narrow black ditch half hidden in rank weeds, which alone could be distinguished in the prevailing yellowish whiteness, and Mark desired nothing better at that moment.

'I wonder,' said Mabel, 'if there's a doctor amongst the passengers. There must be, I should think. I am sure you ought to see one. Let me see if I can find one and bring him to you.'

But Mark declared he was quite himself again, and would have begged her not to leave him if he had dared; and as there really did not seem to be anything serious the matter, Mabel's uneasiness about Dolly returned. 'I can't rest till I find her,' she said, 'and if you really are strong again, will you help me? She cannot have gone very far.'

Mark, only too glad of any pretence to remain with her, volunteered willingly.

'Then will you go round the field that way,' she said, 'and I will go this, and we will meet here again?'

'Don't you think,' said Mark, who had not been prepared for this, 'that if – she might not know me, you see – I mean if I was not with you?'

'Yes, she will,' said Mabel impatiently; 'Dolly won't forget you after what you have done, and we are losing time. Go round by there, and call her now and then; if she is here she will come, and if not then we will try the next field.'

She went off herself as she spoke, and Mark had nothing for it but to obey, as she so evidently expected to be obeyed. He went round the field, calling out the child's name now and then, feeling rather forlorn and ridiculous as his voice went out unanswered on the raw air. Presently a burly figure, grotesquely magnified by the mist, came towards him, and resolved itself into an ordinary guard.

'You one of the gentlemen in my train, sir?' he said, 'the train as broke down, that is?'

'Yes,' said Mark; 'why?'

''Cause we've got the engine put to rights, sir; nothing much the matter with her, there wasn't, and we're goin' on directly, sir; I'm gettin' all my passengers together.'

Mark was in no hurry to leave that field, but his time was not his own; he ought to have been at St. Peter's long ago, and was bound to take the first opportunity of getting back. It would not be pleasant, as it was, to have to go and fetch down his class from the sixth form room, where the headmaster had probably given them a temporary asylum.

He had never forgotten a morning on which he had overslept himself, and the mortification he had felt at the Doctor's blandly polite but cutting reception of his apologies. He had a better excuse this time, but even that would not bear overtaxing.

He hesitated a moment, however. 'I'll go in a minute,' he said, 'but there's a lady and a little girl with a dog somewhere about. They mustn't be left behind. Wait while I go and tell them, will you?'

'Never you fear, sir,' said the guard, 'we won't go without them, but I'll call 'em; they'll mind me more than they will you, beggin' your pardon, sir, and you'd better run on, as time's short, and keep places for 'em. You leave it all to me; I'll take care on 'em.'

Mark heard faint barks across the hedge in the direction Mabel had taken. The child was evidently found. The best thing, he thought, to do now was to secure an empty compartment, and with that idea, and perhaps a little from that instinctive obedience to anything in a uniform which is a characteristic of the average respectable Englishman, he let himself be persuaded by the guard, and went back to the train.

To his great joy he found that the compartment Mabel had occupied had no one in it; he stood waiting by the door for Mabel and her sister to come up, with eager anticipations of a delightful conclusion to his journey. 'Perhaps she will tell me who she is,' he thought; 'at all events she will ask me who I am. How little I hoped for this yesterday!'

He was interrupted by a guard – another guard, a sour-looking man with a grizzled beard, who was in charge of the front van. 'Get in, sir, if you mean to travel by this 'ere train,' he said.

'I'm waiting for a young lady,' said Mark, rather ingenuously, but it slipped out almost without his knowledge. 'The other guard promised me – '

'I don't know nothing about no young ladies,' said the guard obdurately; 'but if you mean my mate, he's just give me the signal from his end, and if you don't want to be left be'ind you'd better take your seat while you can, sir, and pretty sharp, too.'

There was nothing else to do; he could not search for Mabel along the train; he must wait till they got to King's Cross; but he took his seat reluctantly and with a heavy disappointment, thinking what a fool he had been to let himself be persuaded by the burly guard. 'But for that, she might have been sitting opposite to me now!' he thought bitterly. 'What a fool I was to leave her. How pretty she looked when she wanted me to see a doctor; how charming she is altogether! Am I in love with her already? Of course I am; who wouldn't be? I shall see her again. She will speak to me once more, and, after all, things might be worse. I couldn't have counted on that when we started.'

And he tried to console himself with this, feeling an impatient anger at the slow pace of the train as it crept cautiously on towards the goal of his hopes. But the breakdown had not happened very far from town, and, tedious as the time seemed to Mark, it was not actually long before the colour of the atmosphere (there was no other indication) proved that they were nearing the terminus.

It changed by slow gradations from its original yellow-whiteness to mustard colour, from that to a smoky lurid red, and from red to stinging, choking iron-grey, and the iron-grey pall was in full possession of King's Cross, where the sickly moonlight of the electric lamps could only clear small halos immediately around their globes.

Mark sprang out before the train had stopped; he strained his eyes in watching for the form he hoped to see there, but in vain; there were no signs in all that bustle of Mabel or Dolly, or the little dog to whom he owed so much.

He sought out the guard who had deluded him and found him superintending the clearing of the luggage van. He hardly knew whether it was merely a fancy that the official, after making a half-step forward to meet him, and fumbling in all his pockets, turned away again as if anxious to avoid meeting his eye.

Mark forced him to meet him, however, willing or not. 'Where is the lady?' he said sharply. 'You left her behind after all, it seems?'

'It wasn't my fault, sir,' said the guard wheezily, 'nor it wasn't the lady's fault, leastways on'y the little lady's, sir. Both on us tried all we could, but the little missy, her with the tarrier dawg, was nervous-like with it all, and wouldn't hear of getting in the train again; so the young lady, she said, seeing as they was so near London, they could get a fly or a cab or summat, and go on in that.'

'And – did she give you no message for me?' said Mark.

There was such evident expectation in his face that the guard seemed afraid to disappoint it. 'I was to give you her respecks and compliments,' he said slowly – 'or was it her love, now?' he substituted quickly, after a glance at Mark's face, 'and you was not to be in a way about her, and she'd be seein' of you again before very long, and – '

'That's all a lie, you know,' said Mark, calmly.

'Well, then, she didn't say nothing, if that warn't it,' said the guard, doggedly.

'Did she – did she leave any directions about luggage or anything?' said Mark.

'Brown portmanty to go in the left-luggage room till called for,' said the guard. 'Anything else I can do for you, sir; no? Good mornin', then, and thanky, sir!'

'Never did such a thing as that in my life afore,' he muttered, as he went back to his van; 'to go and lose a bit o' paper with writing on it, d'reckly I got it, too; I'm afraid my head's a-leavin' me; they ain't keepin' company, that's plain. I made a mess o' that, or he wouldn't have wanted her direction. I saw what he was up to – well, they'd make a good-looking pair. I'm sorry I lost that there paper; but it warn't no use a-tellin' of him.'

As for Mark, this lame and impotent conclusion brought back all his depression again. 'She never even asked my name!' he thought, bitterly. 'I risked my life for her – it was for her, and she knew it: but she has forgotten that already. I've lost her for ever this time; she may not even live in London, and if she did I've no clue to tell me where, and if I had I don't exactly see what use it would be; I won't think about her – yes, I will, she can't prevent me from doing that, at any rate!'

By this time he had left the City station of the Metropolitan Railway, and was going back to his underground labours at St. Peter's, where he was soon engaged in trying to establish something like discipline in his class, which the dark brown fog seemed to have inspired with unaccountable liveliness. His short holiday had not served to rest and invigorate him as much as might have been expected; it had left him consumed with a hopeless longing for something unattainable. His thirst for distinction had returned in an aggravated form, and he had cut himself off now from the only means of slaking it. As that day wore on, and with each day that succeeded it, he felt a wearier disgust with himself and his surroundings.