'You may well,' said Parnesius. 'Old men who have followed the Eagles since boyhood say nothing in the Empire is more wonderful than first sight of the Wall!'

'Is it just a Wall? Like the one round the kitchen-garden?' said Dan.

'No, no! It is _the_ Wall. Along the top are towers with guard-houses, small towers, between. Even on the narrowest part of it three men with shields can walk abreast from guard-house to guard-house. A little curtain wall, no higher than a man's neck, runs along the top of the thick wall, so that from a distance you see the helmets of the sentries sliding back and forth like beads. Thirty feet high is the Wall, and on the Picts'

side, the North, is a ditch, strewn with blades of old swords and spear-heads set in wood, and tyres of wheels joined by chains. The Little People come there to steal iron for their arrow-heads.

'But the Wall itself is not more wonderful than the town behind it. Long ago there were great ramparts and ditches on the South side, and no one was allowed to build there. Now the ramparts are partly pulled down and built over, from end to end of the Wall; making a thin town eighty miles long. Think of it! One roaring, rioting, c.o.c.kfighting, wolf-baiting, horse-racing town, from Ituna on the West to Segedunum on the cold eastern beach! On one side heather, woods and ruins where Picts hide, and on the other, a vast town-long like a snake, and wicked like a snake. Yes, a snake basking beside a warm wall!

'My Cohort, I was told, lay at Hunno, where the Great North Road runs through the Wall into the Province of Valentia.' Parnesius laughed scornfully. 'The Province of Valentia! We followed the road, therefore, into Hunno town, and stood astonished. The place was a fair-a fair of peoples from every corner of the Empire. Some were racing horses: some sat in wine-shops: some watched dogs baiting bears, and many gathered in a ditch to see c.o.c.ks fight. A boy not much older than myself, but I could see he was an Officer, reined up before me and asked what I wanted.

'"My station," I said, and showed him my shield.' Parnesius held up his broad shield with its three X's like letters on a beer-cask.

'"Lucky omen!" said he. "Your Cohort's the next tower to us, but they're all at the c.o.c.k-fight. This is a happy place. Come and wet the Eagles." He meant to offer me a drink.

'"When I've handed over my men," I said. I felt angry and ashamed.

'"Oh, you'll soon outgrow that sort of nonsense," he answered. "But don't let me interfere with your hopes. Go on to the Statue of Roma Dea. You can't miss it. The main road into Valentia!" and he laughed and rode off.

I could see the Statue not a quarter of a mile away, and there I went. At some time or other the Great North Road ran under it into Valentia; but the far end had been blocked up because of the Picts, and on the plaster a man had scratched, "Finish!" It was like marching into a cave. We grounded spears together, my little thirty, and it echoed in the barrel of the arch, but none came. There was a door at one side painted with our number.

We prowled in, and I found a cook asleep, and ordered him to give us food.

Then I climbed to the top of the Wall, and looked out over the Pict country, and I-thought,' said Parnesius. 'The bricked-up arch with "Finish!" on the plaster was what shook me, for I was not much more than a boy.'

'What a shame!' said Una. 'But did you feel happy after you'd had a good--' Dan stopped her with a nudge.

'Happy?' said Parnesius. 'When the men of the Cohort I was to command came back unhelmeted from the c.o.c.k-fight, their birds under their arms, and asked me who I was? No, I was not happy; but I made my new Cohort unhappy too.... I wrote my Mother I was happy, but, oh, my friends'-he stretched arms over bare knees-'I would not wish my worst enemy to suffer as I suffered through my first months on the Wall. Remember this: among the officers was scarcely one, except myself (and I thought I had lost the favour of Maximus, my General), scarcely one who had not done something of wrong or folly. Either he had killed a man, or taken money, or insulted the magistrates, or blasphemed the G.o.ds, and so had been sent to the Wall as a hiding-place from shame or fear. And the men were as the officers.

Remember, also, that the Wall was manned by every breed and race in the Empire. No two towers spoke the same tongue, or worshipped the same G.o.ds.

In one thing only we were all equal. No matter what arms we had used before we came to the Wall, _on_ the Wall we were all archers, like the Scythians. The Pict cannot run away from the arrow, or crawl under it. He is a bowman himself. _He_ knows!'

'I suppose you were fighting Picts all the time,' said Dan.

'Picts seldom fight. I never saw a fighting Pict for half a year. The tame Picts told us they had all gone North.'

'What is a tame Pict?' said Dan.

'A Pict-there were many such-who speaks a few words of our tongue, and slips across the Wall to sell ponies and wolf-hounds. Without a horse and a dog, _and_ a friend, man would perish. The G.o.ds gave me all three, and there is no gift like friendship. Remember this'-Parnesius turned to Dan-'when you become a young man. For your fate will turn on the first true friend you make.'

'He means,' said Puck, grinning, 'that if you try to make yourself a decent chap when you're young, you'll make rather decent friends when you grow up. If you're a beast, you'll have beastly friends. Listen to the Pious Parnesius on Friendship!'

'I am not pious,' Parnesius answered, 'but I know what goodness means; and my friend, though he was without hope, was ten thousand times better than I. Stop laughing, Faun!'

'Oh Youth Eternal and All-believing,' cried Puck, as he rocked on the branch above. 'Tell them about your Pertinax.'

'He was that friend the G.o.ds sent me-the boy who spoke to me when I first came. Little older than myself, commanding the Augusta Victoria Cohort on the tower next to us and the Numidians. In virtue he was far my superior.'

'Then why was he on the Wall?' Una asked, quickly. 'They'd all done something bad. You said so yourself.'

'He was the nephew, his Father had died, of a great rich man in Gaul who was not always kind to his Mother. When Pertinax grew up, he discovered this, and so his uncle shipped him off, by trickery and force, to the Wall. We came to know each other at a ceremony in our Temple-in the dark.

It was the Bull Killing,' Parnesius explained to Puck.

'_I_ see,' said Puck, and turned to the children. 'That's something you wouldn't quite understand. Parnesius means he met Pertinax in church.'

'Yes-in the Cave we first met, and we were both raised to the Degree of Gryphons together.' Parnesius lifted his hand towards his neck for an instant. 'He had been on the Wall two years, and knew the Picts well. He taught me first how to take Heather.'

'What's that?' said Dan.

'Going out hunting in the Pict country with a tame Pict. You are quite safe so long as you are his guest, and wear a sprig of heather where it can be seen. If you went alone you would surely be killed, if you were not smothered first in the bogs. Only the Picts know their way about those black and hidden bogs. Old Allo, the one-eyed, withered little Pict from whom we bought our ponies, was our special friend. At first we went only to escape from the terrible town, and to talk together about our homes.

Then he showed us how to hunt wolves and those great red deer with horns like Jewish candlesticks. The Roman-born officers rather looked down on us for doing this, but we preferred the heather to their amus.e.m.e.nts. Believe me,' Parnesius turned again to Dan, 'a boy is safe from all things that really harm when he is astride a pony or after a deer. Do you remember, O Faun,' he turned to Puck, 'the little altar I built to the Sylvan Pan by the pine-forest beyond the brook?'

'Which? The stone one with the line from Xenophon?' said Puck, in quite a new voice.

'No. What do _I_ know of Xenophon? That was Pertinax-after he had shot his first mountain-hare with an arrow-by chance! Mine I made of round pebbles in memory of my first bear. It took me one happy day to build.' Parnesius faced the children quickly.

'And that was how we lived on the Wall for two years-a little scuffling with the Picts, and a great deal of hunting with old Allo in the Pict country. He called us his children sometimes, and we were fond of him and his barbarians, though we never let them paint us Pict fashion. The marks endure till you die.'

'How's it done?' said Dan. 'Anything like tattooing?'

'They p.r.i.c.k the skin till the blood runs, and rub in coloured juices. Allo was painted blue, green, and red from his forehead to his ankles. He said it was part of his religion. He told us about his religion (Pertinax was always interested in such things), and as we came to know him well, he told us what was happening in Britain behind the Wall. Many things took place behind us in those days. And, by the Light of the Sun,' said Parnesius, earnestly, 'there was not much that those little people did not know! He told me when Maximus crossed over to Gaul, after he had made himself Emperor of Britain, and what troops and emigrants he had taken with him. _We_ did not get the news on the Wall till fifteen days later.

He told me what troops Maximus was taking out of Britain every month to help him to conquer Gaul; and I always found the numbers as he said.

Wonderful! And I tell another strange thing!'

He jointed his hands across his knees, and leaned his head on the curve of the shield behind him.

'Late in the summer, when the first frosts begin and the Picts kill their bees, we three rode out after wolf with some new hounds. Rutilia.n.u.s, our General, had given us ten days' leave, and we had pushed beyond the Second Wall-beyond the Province of Valentia-into the higher hills, where there are not even any of Rome's old ruins. We killed a she-wolf before noon, and while Allo was skinning her he looked up and said to me, "When you are Captain of the Wall, my child, you won't be able to do this any more!"

'I might as well have been made Prefect of Lower Gaul, so I laughed and said, "Wait till I am Captain." "No, don't wait," said Allo. "Take my advice and go home-both of you." "We have no homes," said Pertinax. "You know that as well as we do. We're finished men-thumbs down against both of us. Only men without hope would risk their necks on your ponies." The old man laughed one of those short Pict laughs-like a fox barking on a frosty night. "I'm fond of you two," he said. "Besides, I've taught you what little you know about hunting. Take my advice and go home."

'"We can't," I said. "I'm out of favour with my General, for one thing; and for another, Pertinax has an uncle."

'"I don't know about his uncle," said Allo, "but the trouble with you, Parnesius, is that your General thinks well of you."

'"Roma Dea!" said Pertinax, sitting up. "What can you guess what Maximus thinks, you old horse-coper?"

'Just then (you know how near the brutes creep when one is eating?) a great dog-wolf jumped out behind us, and away our rested hounds tore after him, with us at their tails. He ran us far out of any country we'd ever heard of, straight as an arrow till sunset, towards the sunset. We came at last to long capes stretching into winding waters, and on a grey beach below us we saw ships drawn up. Forty-seven we counted-not Roman galleys but the raven-winged ships from the North where Rome does not rule. Men moved in the ships, and the sun flashed on their helmets-winged helmets of the red-haired men from the North where Rome does not rule. We watched, and we counted, and we wondered; for though we had heard rumours concerning these Winged Hats, as the Picts called them, never before had we looked upon them.

'"Come away! Come away!" said Allo. "My Heather won't protect you here. We shall all be killed!" His legs trembled like his voice. Back we went-back across the heather under the moon, till it was nearly morning, and our poor beasts stumbled on some ruins.

'When we woke, very stiff and cold, Allo was mixing the meal and water.

One does not light fires in the Pict country except near a village. The little men are always signalling to each other with smokes, and a strange smoke brings them out buzzing like bees. They can sting, too!

'"What we saw last night was a trading-station," said Allo. "Nothing but a trading-station."

'"I do not like lies on an empty stomach," said Pertinax. "I suppose" (he had eyes like an eagle's), "I suppose _that_ is a trading-station also?"

He pointed to a smoke far off on a hill-top, ascending in what we call the Pict's Call:-Puff-double-puff: double-puff-puff! They make it by raising and dropping a wet hide on a fire.

'"No," said Allo, pushing the platter back into the bag. "That is for you and me. Your fate is fixed. Come."

'We came. When one takes Heather, one must obey one's Pict-but that wretched smoke was twenty miles distant, well over on the east coast, and the day was as hot as a bath.

'"Whatever happens," said Allo, while our ponies grunted along, "I want you to remember me."