"Though Isengard be strong and hard, as cold as stone and bare as bone,

We go, we go, we go to war, to hew the stone and break the door!

There was very much more. A great deal of the song had no words, and was like a music of horns and drums. It was very exciting. But I thought it was only marching music and no more, just a song - until I got here. I know better now."

"We came down over the last ridge into Nan Curunir, after night had fallen," Merry continued. "It was then that I first had the feeling that the Forest itself was moving behind us. I thought I was dreaming an entish dream, but Pippin had noticed it too. We were both frightened; but we did not find out more about it until later.

"It was the Huorns, or so the Ents call them in "short language". Treebeard won't say much about them, but I think they are Ents that have become almost like trees, at least to look at. They stand here and there in the wood or under its eaves, silent, watching endlessly over the trees; but deep in the darkest dales there are hundreds and hundreds of them, I believe.

"There is a great power in them, and they seem able to wrap themselves in shadow: it is difficult to see them moving. But they do. They can move very quickly, if they are angry. You stand still looking at the weather, maybe, or listening to the rustling of the wind, and then suddenly you find that you are in the middle of a wood with great groping trees all around you. They still have voices, and can speak with the Ents - that is why they are called Huorns, Treebeard says - but they have become queer and wild. Dangerous. I should be terrified of meeting them, if there were no true Ents about to look after them.

"Well, in the early night we crept down a long ravine into the upper end of the Wizard's Vale, the Ents with all their rustling Huorns behind. We could not see them, of course, but the whole air was full of creaking. It was very dark, a cloudy night. They moved at a great speed as soon as they had left the hills, and made a noise like a rushing wind. The Moon did not appear through the clouds, and not long after midnight there was a tall wood all round the north side of Isengard. There was no sign of enemies nor of any challenge. There was a light gleaming from a high window in the tower, that was all.

"Treebeard and a few more Ents crept on, right round to within sight of the great gates. Pippin and I were with him. We were sitting on Treebeard's shoulders, and I could feel the quivering tenseness in him. But even when they are roused, Ents can be very cautious and patient. They stood still as carved stones, breathing and listening.

"Then all at once there was a tremendous stir. Trumpets blared and the walls of Isengard echoed. We thought that we had been discovered, and that battle was going to begin. But nothing of the sort. All Saruman's people were marching away. I don't know much about this war, or about the Horsemen of Rohan, but Saruman seems to have meant to finish off the king and all his men with one final blow. He emptied Isengard. I saw the enemy go: endless lines of marching Orcs; and troops of them mounted on great wolves. And there were battalions of Men, too. Many of them carried torches, and in the flare I could see their faces. Most of them were ordinary men, rather tall and dark-haired, and grim but not particularly evil-looking. But there were some others that were horrible: man-high, but with goblin-faces, sallow, leering, squint-eyed. Do you know, they reminded me at once of that Southerner at Bree: only he was not so obviously orc-like as most of these were."

"I thought of him too," said Aragorn. "We had many of these half-orcs to deal with at Helm's Deep. It seems plain now that that Southerner was a spy of Saruman's; but whether he was working with the Black Riders, or for Saruman alone, I do not know. It is difficult with these evil folk to know when they are in league, and when they are cheating one another."

"Well, of all sorts together, there must have been ten thousand at the very least," said Merry. "They took an hour to pass out of the gates. Some went off down the highway to the Fords, and some turned away : and went eastward. A bridge has been built down there, about a mile away, where the river runs in a very deep channel. You could see it now, if you stood up. They were all singing with harsh voices, and laughing, making a hideous din. I thought things looked very black for Rohan. But Treebeard did not move. He said: "My business is with Isengard tonight, with rock and stone."

"But, though I could not see what was happening in the dark, I believe that Huorns began to move south, as soon as the gates were shut again. Their business was with Orcs I think. They were far down the valley in the morning; or any rate there was a shadow there that one couldn't see through.

"As soon as Saruman had sent off all his army, our turn came. Treebeard put us down, and went up to the gates, and began hammering on the doors, and calling for Saruman. There was no answer, except arrows and stones from the walls. But arrows are no use against Ents. They hurt them, of course, and infuriate them: like stinging flies. But an Ent can be stuck as full of orc-arrows as a pin-cushion, and take no serious harm. They cannot be poisoned, for one thing; and their skin seems to be very thick, and tougher than bark. It takes a very heavy axe-stroke to wound them seriously. They don't like axes. But there would have to be a great many axe-men to one Ent: a man that hacks once at an Ent never gets a chance of a second blow. A punch from an Ent-fist crumples up iron like thin tin.

"When Treebeard had got a few arrows in him, he began to warm up, to get positively "hasty", as he would say. He let out a greathoom-hom , and a dozen more Ents came striding up. An angry Ent is terrifying. Their fingers, and their toes, just freeze on to rock; and they tear it up like bread-crust. It was like watching the work of great tree-roots in a hundred years, all packed into a few moments.

"They pushed, pulled, tore, shook, and hammered; andclang-bang ,crash-crack , in five minutes they had these huge gates just lying in ruin; and some were already beginning to eat into the walls, like rabbits in a sand-pit. I don't know what Saruman thought was happening; but anyway he did not know how to deal with it. His wizardry may have been falling off lately, of course; but anyway I think he has not much grit, not much plain courage alone in a tight place without a lot of slaves and machines and things, if you know what I mean. Very different from old Gandalf. I wonder if his fame was not all along mainly due to his cleverness in settling at Isengard."

"No," said Aragorn. "Once he was as great as his fame made him. His knowledge was deep, his thought was subtle, and his hands marvellously skilled; and he had a power over the minds of others. The wise he could persuade, and the smaller folk he could daunt. That power he certainly still keeps. There are not many in Middle-earth that I should say were safe, if they were left alone to talk with him, even now when he has suffered a defeat. Gandalf, Elrond, and Galadriel, perhaps, now that his wickedness has been laid bare, but very few others."