‘There can be no doubt whatever,’ said Mr. Phillipps, ‘that my theory is the true one; these flints are prehistoric fish-hooks.’

‘I dare say; but you know that in all probability the things were forged the other day with a door-key.’

‘Stuff!’ said Phillipps; ‘I have some respect, Dyson, for your literary abilities, but your knowledge of ethnology is insignificant, or rather non-existent. These fish-hooks satisfy every test; they are perfectly genuine.’

‘Possibly, but as I said just now, you go to work at the wrong end. You neglect the opportunities that confront you and await you, obvious, at every corner; you positively shrink from the chance of encountering primitive man in this whirling and mysterious city, and you pass the weary hours in your agreeable retirement of Red Lion Square fumbling with bits of flint, which are, as I said, in all probability, rank forgeries.’

Phillipps took one of the little objects, and held it up in exasperation.

‘Look at that ridge,’ he said. ‘Did you ever see such a ridge as that on a forgery?’

Dyson merely grunted and lit his pipe and the two sat smoking in rich silence, watching through the open window the children in the square as they flitted to and fro in the twilight of the lamps, as elusive as bats flying on the verge of a dark wood.

‘Well,’ said Phillipps at last, ‘it is really a long time since you have been round. I suppose you have been working at your old task.’

‘Yes,’ said Dyson, ‘always the chase of the phrase. I shall grow old in the hunt. But it is a great consolation to meditate on the fact that there are not a dozen people in England who know what style means.’

‘I suppose not; for the matter of that, the study of ethnology is far from popular. And the difficulties! Primitive man stands dim and very far off across the great bridge of years.’

‘By the way,’ he went on after a pause, ‘what was that stuff you were talking just now about shrinking from the chance of encountering primitive man at the corner, or something of the kind? There are certainly people about here whose ideas are very primitive.’

‘I wish, Phillipps, you would not rationalize my remarks. If, I recollect the phrases correctly, I hinted that you shrank from the chance of encountering primitive man in this whirling and mysterious city, and I meant exactly what I said. Who can limit the age of survival? The troglodyte and the lake-dweller, perhaps representatives of yet darker races, may very probably be lurking in our midst, rubbing shoulders with frock-coated and finely draped humanity, ravening like wolves at heart and boiling with the foul passions of the swamp and the black cave. Now and then as I walk in Holborn or Fleet Street I see a face which I pronounce abhorred, and yet I could not give a reason for the thrill of loathing that stirs within me.’

‘My dear Dyson, I refuse to enter myself in your literary “trying-on” department. I know that survivals do exist, but all things have a limit, and your speculations are absurd. You must catch me your troglodyte before I will believe in him.’

‘I agree to that with all my heart,’ said Dyson, chuckling at the ease with which he had succeeded in ‘drawing’ Phillipps. ‘Nothing could be better. It’s a fine night for a walk,’ he added taking up his hat.

‘What nonsense you are talking, Dyson!’ said Phillipps. ‘However, I have no objection to taking a walk with you: as you say, it is a pleasant night.’

‘Come along then,’ said Dyson, grinning, ‘but remember our bargain.’

The two men went out into the square, and threading one of the narrow passages that serve as exits, struck towards the north-east. As they passed along a flaring causeway they could hear at intervals between the clamour of the children and the triumphant Gloria played on a piano-organ the long deep hum and roll of the traffic in Holborn, a sound so persistent that it echoed like the turning of everlasting wheels. Dyson looked to the right and left and conned the way, and presently they were passing through a more peaceful quarter, touching on deserted squares and silent streets black as midnight. Phillipps had lost all count of direction, and as by degrees the region of faded respectability gave place to the squalid, and dirty stucco offended the eye of the artistic observer, he merely ventured the remark that he had never seen a neighbourhood more unpleasant or more commonplace.

‘More mysterious, you mean,’ said Dyson. ‘I warn you, Phillipps, we are now hot upon the scent.’

They dived yet deeper into the maze of brickwork; some time before they had crossed a noisy thoroughfare running east and west, and now the quarter seemed all amorphous, without character; here a decent house with sufficient garden, here a faded square, and here factories surrounded by high, blank walls, with blind passages and dark corners; but all ill-lighted and unfrequented and heavy with silence.

Presently, as they paced down a forlorn street of two-story houses, Dyson caught sight of a dark and obscure turning.

‘I like the look of that,’ he said; ‘it seems to me promising.’ There was a street lamp at the entrance, and another, a mere glimmer, at the further end. Beneath the lamp, on the pavement, an artist had evidently established his academy in the daytime, for the stones were all a blur of crude colours rubbed into each other, and a few broken fragments of chalk lay in a little heap beneath the wall.

‘You see people do occasionally pass this way,’ said Dyson, pointing to the ruins of the screever’s work. ‘I confess I should not have thought it possible. Come, let us explore.’

On one side of this byway of communication was a great timber-yard, with vague piles of wood looming shapeless above the enclosing wall; and on the other side of the road a wall still higher seemed to enclose a garden, for there were shadows like trees, and a faint murmur of rustling leaves broke the silence. It was a moonless night, and clouds that had gathered after sunset had blackened, and midway between the feeble lamps the passage lay all dark and formless, and when one stopped and listened, and the sharp echo of reverberant footsteps ceased, there came from far away, as from beyond the hills, a faint roll of the noise of London. Phillipps was bolstering up his courage to declare that he had had enough of the excursion, when a loud cry from Dyson broke in upon his thoughts.

‘Stop, stop, for Heaven’s sake, or you will tread on it! There! almost under your feet!’ Phillipps looked down, and saw a vague shape, dark, and framed in surrounding darkness, dropped strangely on the pavement, and then a white cuff glimmered for a moment as Dyson lit a match, which went out directly.

‘It’s a drunken man,’ said Phill............