THERE Is no denying it was a beast of a day. Overhead was a sunless sky, muffled in clouds that were heavy with snow; underfoot, a black frost; blowing over it, a wind that felt as if it would take your skin off. When they got down into the plain they found that this part of the ancient road was much more ruinous than any they had yet seen. They had to pick their way over great broken stones and between boulders and across rubble: hard going for sore feet. And, however tired they got, it was far too cold for a halt.

At about ten o'clock the first tiny snow flakes came loitering down and settled on Jill's arm. Ten minutes later they were falling quite thickly. In twenty minutes the ground was noticeably white. And by the end of half an hour a good steady snowstorm, which looked as if it meant to last all day, was driving in their faces so that they could hardly see.

In order to understand what followed, you must keep on remembering how little they could see. As they drew near the low hill which separated them from the place where the lighted windows had appeared, they had no general view of it at all. It was a question of seeing the next few paces ahead, and, even for that, you had to screw up your eyes. Needless to say, they were not talking.

When they reached the foot of the hill they caught a glimpse of what might be rocks on each side - squarish rocks, if you looked at them carefully, but no one did. All were more concerned with the ledge right in front of them which barred their way. It was about four feet high. The Marsh-wiggle, with his long legs, had no difficulty in jumping onto the top of it, and he then helped the others up. It was a nasty wet business for them, though not for him, because the snow now lay quite deep on the ledge. They then had a stiff climb - Jill fell once - up very rough ground for about a hundred yards, and came to a second ledge. There were four of these ledges altogether, at quite irregular intervals.

As they struggled on to the fourth ledge, there was no mistaking the fact that they were now at the top of the flat hill. Up till now the slope had given them some shelter; here, they got the full fury of the wind. For the hill, oddly enough, was quite as flat on top as it had looked from a distance: a great level tableland which the storm tore across without resistance. In most places the snow was still hardly lying at all, for the wind kept catching it up off the ground in sheets and clouds, and hurling it in their faces. And round their feet little eddies of snow ran about as you sometimes see them doing over ice. And, indeed, in many places, the surface was almost as smooth as ice. But to make matters worse it was crossed and crisscrossed with curious banks or dykes, which sometimes divided it up into squares and oblongs. All these of course had to be climbed; they varied from two to five feet in height and were about a couple of yards thick. On the north side of each bank the snow already lay in deep drifts; and after each climb you came down into a drift and got wet.

Fighting her way forward with hood up and head down and numb hands inside her cloak, Jill had glimpses of other odd things on that horrible tableland - things on her right that looked vaguely like factory chimneys, and, on her left, a huge cliff, straighter than any cliff ought to be. But she wasn't at all interested and didn't give them a thought. The only things she thought about were her cold hands (and nose and chin and ears) and hot baths and beds at Harfang.

Suddenly she skidded, slid about five feet, and found herself to her horror sliding down into a dark, narrow chasm which seemed that moment to have appeared in front of her. Half a second later she had reached the bottom. She appeared to be in a kind of trench or groove, only about three feet wide. And though she was shaken by the fall, almost the first thing she noticed was the relief of being out of the wind; for the walls of the trench rose high above her. The next thing she noticed was, naturally, the anxious faces of Scrubb and Puddleglum looking down at her from the edge.

"Are you hurt, Pole?" shouted Scrubb.

"Both legs broken, I shouldn't wonder," shouted Puddleglum.

Jill stood up and explained that she was all right, but they'd have to help her out.

"What is it you've fallen into?" asked Scrubb.

"It's a kind of trench, or it might be a kind of sunken lane or something," said Jill. "It runs quite straight."

"Yes, by Jove," said Scrubb. "And it runs due north! I wonder is it a sort of road? If it was, we'd be out of this infernal wind down there. Is there a lot of snow at the bottom?"

"Hardly any. It all blows over the top, I suppose."

"What happens farther on?"

"Half a sec. I'll go and see," said Jill. She got up and walked along the trench; but before she had gone far, it turned sharply to the right. She shouted this information back to the others.

"What's round the corner?" asked Scrubb.

Now it happened that Jill had the same feeling about twisty passages and dark places underground, or even nearly underground, that Scrubb had about the edges of cliffs. She had no intention of going round that corner alone; especially when she heard Puddleglum bawling out from behind her:

"Be careful, Pole. It's just the sort of place that might lead to a dragon's cave. And in a giant country, there might be giant earth-worms or giant beetles."

"I don't think it goes anywhere much," said Jill, coming hastily back.

"I'm jolly well going to have a look," said Scrubb. "What do you mean by anywhere much, I should like to know?" So he sat down on the edge of the trench (everyone was too wet by now to bother about being a bit wetter) and then dropped in. He pushed past Jill and, though he didn't say anything, she felt sure that he knew she had funked it. So she followed him close, but took care not to get in front of him.

It proved, however, a disappointing exploration. They went round the right-hand turn and straight on for a few paces. Here there was a choice of ways: straight on again, or sharp to the right. "That's no good," said Scrubb, glancing down the right-hand turn, "that would be taking us back - south." He went straight on, but once more, in a few steps, they found a second turn to the right. But this time there was no choice of ways, for the trench they had been following here came to a dead end.

"No good," grunted Scrubb. Jill lost no time in turning and leading the way back. When they returned to the place where Jill had first fallen in, the Marsh-wiggle with his long arms had no difficulty in pulling them out.

But it was dreadful to be out on top again. Down in those narrow slits of trenches, their ears had almost begun to thaw. They had been able to see clearly and breathe easily and hear each other speak without shouting. It was absolute misery to come back into the withering coldness. And it did seem hard when Puddleglum chose that moment for saying:

"Are you still sure of those signs, Pole? What's the one we ought to be after, now?"

"Oh, come on! Bother the signs," said Pole. "Something about someone mentioning Aslan's name, I think. But I'm jolly well not going to give a recitation here."

As you see, she had got the order wrong. That was because she had given up saying the signs over every night. She still really knew them, if she troubled to think: but she was no longer so "pat" in her lesson as to be sure of reeling them off in the right order at a moment's notice and without thinking. Puddleglum's question annoyed her because, deep down inside her, she was already annoyed with herself for not knowing the Lion's lesson quite so well as she felt she ought to have known it. This annoyance, added to the misery of being very cold and tired, made her say, "Bother the signs." She didn't perhaps quite mean it.

"Oh, that was next, was it?" said Puddleglum. "Now I wonder, are you right? Got 'em mixed, I shouldn't wonder. It seems to me, this hill, this flat place we're on, is worth stopping to have a look at. Have you noticed - "

"Oh Lor!" said Scrubb, "is this a time for stopping to admire the view? For goodness' sake let's get on."

"Oh, look, look, look," cried Jill and pointed. Everyone turned, and everyone saw. Some way off to the north, and a good deal higher up than the tableland on which they stood, a line of lights had appeared. This time, even more obviously than when the travellers had seen them the night before, they were windows: smaller windows that made one think deliciously of bedrooms, and larger windows that made one think of great halls with fires roaring on the hearth and hot soup or juicy sirloins smoking on the table.

"Harfang!" exclaimed Scrubb.