The notes of anger and affection were struck in ludicrously quick succession; but the first was repeated on the boy's hang-dog admission that he had been hiding.

"Hiding, Tony?"

Thrush himself seemed surprised at the expression. "But at all events we found you better employed," he said to Pocket, "and the sooner we all take up the chase again the more chance we shall have of laying this rascal by the heels."

"Take it up, then!" snapped Mr. Upton. "Jump into the motor, and bring the brute to me when you've got him! I want to speak to my boy."

He did not realise the damage done to his car, or listen to a word that pa.s.sed between Thrush and his chauffeur; he had eyes only for those of his child who had been lost but was found, and not a thought in his head outside the story he extracted piecemeal on the spot. Poor Pocket told it very volubly and ill; he would not confine himself to simple facts. He stated his suspicion of Baumgartner's complicity in the Hyde Park affair as though he knew it for a fact; cited the murders in Holland Walk and Park Lane as obvious pieces of the same handiwork, and yet declared his conviction that the actual hand was not Dr. Baumgartner's at all.

"But why should you think he had an accomplice, Tony?"

"He was unarmed the other morning. I'm quite positive of that. And his niece, who lives with him, has never seen a firearm of any kind in the house."

"Well, he's villain enough to hang, if ever there was one! It's time we laid hold of him. Where's Mr. Thrush? I thought you'd taken him on in the car?"

This to the chauffeur, now the centre of the carrion crowd that gathers about the body of any disabled motor. The chauffeur, a countryman like his master, was enjoying himself vastly with a surrept.i.tious cigarette and sardonic mutterings on the cause of his scattered spokes; the facts being that he had nearly fallen asleep at his wheel, which Mr. Upton had incontinently taken into his own less experienced hands.

"The car won't take anybody anywhere to-day," explained the chauffeur, with his cigarette behind his back. "I shall have to get a lorry to take the car." He held his head on one side suddenly. "There's a bit o' tyre trouble for somebody!" he cried, grimly.

Indeed, a sharp crack had come from the direction of the river, not unlike the bursting of a heavy tyre; but Pocket Upton did not think it was that.

He caught his father's arm, and whispered in his father's ear, and they plunged together into a side street broader than the asphalt thoroughfare, but with scarcely a break in either phalanx of drab mediocre dwellings, and not a creature stirring except themselves and a few who followed. The hog's back of a still more deserted bridge arched itself at the foot of the street, its suspension cables showing against the sky in foreshortened curves. As they ran a peculiarly shrill whistle cut the morning air like a streak of sound.

"P'lice!" screamed one of those bringing up the rear, and they easily spurted past father and son, each already contending with his own infirmity. Mr. Upton was dangerously scarlet in the neck, and Pocket panting as he had not done for days. In sad labour they drew near the suspension bridge, to a crescendo accompaniment on the police whistle. It was evidently being blown on the Embankment to the right of the bridge, and already with considerable effect. As the pair were about to pa.s.s an intermediate turning on the right, a constable flew across it on a parallel course, and they altered theirs with one accord. Pocket panted after the constable, and his father thundered after Pocket, into a narrow street debouching upon a fenced strip of greenery, not too dense to hide broad pavement and low parapet on its further side, with a strip of brown river beyond that, and a skyline of warehouses on the Surrey sh.o.r.e.

The narrow garden had not been opened for the day. There was a gate opposite the end of the road, another gate leading out on the Embankment opposite that. Between the two gates a grimy statue rose upon a granite pedestal, a meditative figure clad to the heels in some nondescript garment, and gazing across the river as he sat with a number of discarded volumes under his chair. It was a peculiarly lifelike monument, which Pocket would have been just the boy to appreciate at any other time; even now it struck him for an instant, before his attention was attracted to the group of commonplace living people on the Embankment beyond the narrow garden. They were standing together on the far side of one of the fixed seats. There was the policeman who had blown the whistle, and a small but motley crew who had answered to the call. Conspicuous units were a gentleman in dressing-gown and pyjamas, a couple of chimneysweeps, and a labouring cyclist on his way to work. They had formed a circle about some hidden object on the ground; and long before the new-comers could run round and join them, the schoolboy had steeled himself to look upon another murdered man. He was in no hurry to look; apart from a natural dread of death, which he had seen for the first time, and then unwittingly, only the other morning, it was the murderer and not his victim of whom the boy was thinking as he arrived last upon the scene. It was Dr. Baumgartner whom he half expected to see swimming the river or hiding among the bushes in the enclosed garden; for he was not one of the group on the Embankment; and how else could he have made his escape? The point was being discussed as Pocket came into earshot; all he could see of the fallen man was the soles of his boots upright among living legs.

"Is he dead?" he asked of one of the chimneysweeps, who was detaching himself from the group with the air of a man who had seen the best of the fun.

"Dead as an 'erring," replied the sweep cheerfully. "Sooicide in the usual st.i.te o' mind."

"Rats!" said the other sweep over a sooty shoulder; "unless 'e shot 'isself first an' swallered the shooter afterwards! Some'un's done 'im in."

Pocket set his teeth, and shouldered his way into the group. His father was already in the thick of it, talking to the stout man in spectacles, who had risen miraculously from the ground and was busy brushing his trouser-knees. Pocket forced himself on with much the same nutter he had taken into the Chamber of Horrors, but with an equal determination to look just once upon Dr. Baumgartner's latest victim. A loud cry escaped him when he did look; for the murdered man, and not the murderer, was Dr.

Baumgartner himself.

WHAT THE THAMES GAVE UP

Phillida was prepared for anything when she beheld a motor-car at the gate, and the escaped schoolboy getting out with a grown man of s.h.a.ggy and embarra.s.sed aspect; but she was not prepared for the news they brought her. She was intensely shocked and shaken by it. Her grief and horror were not the less overwhelming for the shame and fear which they replaced in her mind. Yet she remained instinctively on her guard, and a pa.s.sionate curiosity was the only emotion she permitted herself to express in words.

"But have they no idea who did it? Are they quite sure he didn't do it himself?"

Mr. Upton broke through his heavy embarra.s.sment with no little relief, to dispose of the question of suicide once and for all.

"It's the one thing they are sure about," said he. "In the first place no weapon was to be found, and we saw no sign of a camera either, though this boy tells me your uncle had his with him when he went out. That's more or less conclusive in itself. But there was a doctor on the spot before we left, and I heard him say the shot couldn't have been fired at very close quarters, and that death must have been instantaneous. So it's no more a suicide than the case in Park Lane yesterday or the one in Hyde Park last week; there's evidently some maniac prowling about at dawn, and shooting down the first person he sees and then vanishing into thin air as maniacs seem to have a knack of doing more effectually than sane men. But the less we jump to conclusions about him-or anybody else-the better."

The girl was grateful for the covert sympathy of the last remark, and yet it startled her as an index of what must have pa.s.sed already between father and son. It was a new humiliation that this big bluff man should know as much as the boy whom she had learnt to look upon as a comrade in calamity. Yet she could not expect it to be otherwise.

"What must you think!" she cried, and her great eyes filled and fell again. "Oh! what must you think?"

"It's no good thinking," he rejoined, with almost a jovial kindness.

"We're all three on the edge of a mystery; we must see each other through before we think. Not that I've had time to hear everything yet, but I own I can't make head or tail of what I have heard. I'm not sure that I want to. I like a man's secrets to die with him; it's enough for me to have my boy back again, and to know that you stood by him as you did. It's our turn to stand by you, my dear! He says it wasn't your fault he didn't come away long ago; and it shan't be mine if you stay another hour alone in this haunted house. You've got to come straight back with us to our hotel."

They happened to be all three standing in the big back room, a haunted chamber if there was one in the house. With his battle-pictures on the walls, his tin of tobacco on the chimney-piece, and the scent of latakia rising from the carpet, the whole room remained redolent of the murdered man; and the window still open, the two chairs near it as they had been overnight, and the lamp lying in fragments on the path outside, brought the last scene back to the boy's mind in full and vivid detail. Yet the present one was in itself more desolate and depressing than any in which Dr. Baumgartner had figured. It might be that the constant menace of that portentous presence had thrown his simple middle-cla.s.s surroundings, at the time, into a kind of rea.s.suring relief. But it was the case that the morning had already clouded over; the sunshine of the other mornings was sadly missing; and Phillida looked only too eager to fly from the scene, until she declared she never could.

"But that's absurd!" cried Mr. Upton bluntly. "I'm not going to leave a young girl like you alone in the day of battle, murder and sudden death!

You needn't necessarily come with us, as long as you don't stay here.

Have you no other relatives in London?"

"None anywhere that I know much about."

"That doesn't matter. It's time they knew more about you. I'll hunt them up in the motor, if they're anywhere within a hundred miles, but you simply must let me take their place meanwhile."

He was a masterful man enough; it did not require the schoolboy's added supplications to bring about an eventual compromise. The idea had indeed been Pocket's originally, but his father had taken it up more warmly than he could have hoped. It was decided that they should return to their hotel without Phillida, but to send the car back for her later in the morning, as it would take her some time to pack her things and leave the deserted house in some semblance of order.

But her packing was a very small matter, and she left it to the end; most of the time at her disposal was spent in a hurried investigation of the dead man's effects, more especially of his store of negatives in the dark-room. The only incriminating plates, however, were the one she had already seen on its discovery by Pocket the day before and another of a man lying in a heap in the middle of a road. This one had been put to dry openly in the rack, the wood of which was still moist from the process.

Phillida only held it up to the light an instant, and then not only smashed both these negatives, but poured boiling water on the films and floated them down the sink. The bits of gla.s.s she put in the dust-bin with those of the broken lamp, and had hardly done so when the first policeman arrived to report the fatality. He was succeeded by a very superior officer, who gained admittance and asked a number of questions concerning the deceased, but in a perfunctory manner that suggested few if any expectations from the replies. Neither functionary made any secret of his a.s.sumption that the latest murder was but another of the perfectly random series which had already thrilled the town, but on which no light was likely to be shed by the antecedents of the murdered men. A third official came to announce that the inquest was to be opened without delay, at two o'clock that afternoon, and to request Phillida to accompany him to the mortuary for the formal identification of the deceased.

That was a dread ordeal, and yet she expected a worse. She had steeled herself to look upon a debased image of the familiar face, and she found it startlingly enn.o.bled and refined. Death had taken away nothing here, save the furrows of age and the fires of madness, and it had given back the look of fine courage and of sane integrity which the girl was just old enough to a.s.sociate with the dead man's prime. She was thankful to have seen him like this for the last time. She wished that all the world could see him as he was, so n.o.ble and so calm, for then n.o.body would ever suspect that which she herself would find it easier to disbelieve from this hour.

"You do identify him, I suppose, miss?" the officer whispered, impressed by her strange stare.

"Oh, yes!" said Phillida. "But he looks as I have not seen him look for years. There are worse things than death!"

She said the same thing to Mr. Upton at luncheon in his private sitting-room at the hotel, whereupon he again a.s.sured her that he had no desire to know a dead man's secrets. He had found his boy; that was quite enough for him, and he was able to deliver himself the more freely on the subject since Pocket was not at table, but in bed making up for lost sleep. Not only had he succeeded in finding his son, but he had found him without the aid of police or press, and so not more than a dozen people in the world knew that he had ever disappeared. Mr. Upton explained why he had deemed it essential to keep the matter from his wife's ears, and added almost equally good reasons for continuing to hush it up on the boy's account if only it were possible to do so; but would it be possible to Phillida to exclude from her evidence at the inquest all mention of so recent a visitor at her uncle's house? Phillida promised to do her best, and it proved not only possible but easy. She was questioned as to the habits of the deceased so far as they explained his presence on the Embankment at such a very early hour, but that was all. Asked if she knew of a single person who could conceivably have borne such a grudge against Dr. Baumgartner as to wish to take his life, the witness answered in the negative, and the coroner bowed as much as to say that of course they all knew the character of the murder, but he had put the question for form's sake. The only one which caused her a moment's hesitation arose from a previous answer, which connected the doctor's early ramblings with his hobby of instantaneous photography. Had he his camera with him that morning? Phillida thought so. Why? Well, he always did take it out, and it certainly was not in the house. Mr. Upton wiped his forehead, for he knew that his boy's name had been on the tip of the witness's tongue. And there was a sensation in court as well; for here at last was a bone for the detectives, who obtained a minute description of the missing camera, but grumbled openly that they had not heard of it before.

"They never told me they hadn't got it," explained Phillida to the coroner, who made her his courteous bow, and permitted her to leave the court on the conclusion of her evidence.

On the stairs Mr. Upton paid her compliments that made her wince as much as the crude grip of his hand; but he was tact itself compared with his friend Mr. Thrush, who sought an interview in order to ply the poor girl there and then with far more searching questions than she had been required to answer upon oath. She could only look at Mr. Upton in a way that secured his peppery intervention in a moment. The two men had scarcely seen each other since the morning, and the ironmaster thought they had enough to say to each other without bothering Miss Platts just then; they accordingly adjourned to Gla.s.shouse Street, and Phillida was to have gone on to the hotel; but she made them drop her at a shop near Sloane Square on the pretext of seeing about her mourning.

Phillida had promised to drive straight back to Trafalgar Square and order tea for herself if Tony had not appeared; but she did not drive straight back. She had a curious desire to see the place where the murder had been committed. It had come upon her at the inquest, while listening to the constable who had found the body, her predecessor in the witness-box. She had failed to follow his evidence. He had described that portion of his beat which had brought him almost on the scene of the murder, almost at the moment of its commission. It included only the short section of Cheyne Walk between Oakley Street and Cheyne Row. The houses at this point are divided from the Embankment by the narrow garden which contains the Carlyle statue. He had turned up Cheyne Row, at the back of the statue, but before turning he had noticed a man on the seat facing the river on the far side of the garden. The man was sitting down, but he was said to have turned round and watched the policeman as he pa.s.sed along Cheyne Walk. There might have been a second man lying on that seat, or crouching on the flags between the seat and the parapet, but he would have been invisible from the beat. Not another creature was in sight anywhere.

Yet the policeman swore that he had not proceeded a dozen yards up Cheyne Row before the shot was fired. He had turned round actually in time to see the puff of smoke dispersing over the parapet. It was all he saw. He had found the deceased lying in a heap, nearer the seat than the parapet, but between the two. Not another soul did he see, or had he seen. And he had not neglected to look over the parapet into the river, and along the foresh.o.r.e in both directions, without discovering sign or trace of human being.

Such was the story which Phillida found so hard to credit that she proceeded to the spot in order to go over the ground for her own satisfaction. This did not make it easier to understand. It had come on to rain heavily while she was in the shop; the shining Embankment was again practically deserted, and she was able to carry out her experiment without exciting observation. She took a dozen steps up Cheyne Row, pretended she heard the shot, turned sharp round, and quite realised that from where she was the body could not have been seen, hidden as it must have been by the seat, which itself was almost hidden by the long and narrow island of enclosed garden. But a running man could have been seen through the garden, even if he stooped as he ran, and the murderer must have run like the wind to get away as he had done. The gates through the garden, back and front of the statue, had not been opened for the day when the murder took place, so Phillida in her turn made a half-circuit of the island to get to the spot where the body had been found, but without taking her eyes off the spot until she reached it. No! It was as she had thought all along; by nothing short of a miracle could the a.s.sa.s.sin have escaped observation if the policeman had eyes in his head and had acted as he swore he had done. He might have dashed into the garden, when the policeman was at his furthest point distant, if the gates had been open as they were now; but they had been locked, and he could not have scaled them un.o.bserved. Neither would it have been possible to take a header into the river with the foresh.o.r.e as described by the same witness. Yet the murderer had either done one of these things, or the flags of the Embankment had opened and swallowed him.

The girl stood on the very spot where the murdered man must have fallen, and in her utter perplexity it was no longer the tragedy but the problem which engrossed her mind. What had happened, had happened; but how could it have happened? She raised her umbrella and peered through the rain at a red pile of many-windowed flats; had that Argus of the hundred eyes been sleeping without one of them open at the time? Her own eyes fell as far as the black statue in the narrow garden, standing out in the rain, like the greenery about its granite base, as though the blackened bronze were polished marble. How lifelike the colossal scholar in his homely garb!

How scornful and how shrewd the fixed eternal gaze across his own old Father Thames! It a.s.sumed another character as the girl gazed in her turn, she seemed to intercept that stony stare, to distract it from the river to herself, and to her fevered fancy the grim lips smiled contemptuously on her and her quandary. He knew-_he_ knew-those grim old eyes had seen it all, and still they stared and smiled as much as to say: "You are looking the wrong way! Look where I am looking; that way lies the truth you are poor fool enough to want to know!"

And Phillida turned her back towards the shiny statue, and looked over the wet parapet, almost expecting to see something, but never dreaming of what she actually saw. The tide, which must have been coming in that early morning, was now going out, and between the Embankment masonry and the river there was again a draggled ribbon of shelving foresh.o.r.e, black as on some volcanic coast; and between land and water, at a point that would necessarily have been submerged for the last eight or nine hours, a small object was being laid more bare by every receding wavelet. It was black and square, perhaps the size of two large cigar-boxes side by side; and it had one long, thin, reddish tentacle, finishing in a bulb that moved about gently in the rain-pocked water.

Phillida felt the parapet strike cold and wet through her rain-coat sleeves as she leant far over to make doubly sure what she object was; but indeed she had not a moment's doubt but that it was the missing camera of the murdered man.