‘In the afternoon we walked round the circle, and went to have a look at what was going on. There was a great shadowy wood of Huorns at the head of the valley, and another round the northern wall. We did not dare to go in. But there was a rending, tearing noise of work going on inside. Ents and Huorns were digging great pits and trenches, and making great pools and dams, gathering all the waters of the Isen and every other spring and stream that they could find. We left them to it.
‘At dusk Treebeard came back to the gate. He was humming and booming to himself, and seemed pleased. He stood and stretched his great arms and legs and breathed deep. I asked him if he was tired.
‘ ‘‘Tired?’’ he said, ‘‘tired? Well no, not tired, but stiff. I need a good draught of Entwash. We have worked hard; we have done more stone-cracking and earth-gnawing today than we have done in many a long year before. But it is nearly finished. When night falls do not linger near this gate or in the old tunnel! Water may come through – and it will be foul water for a while, until all the filth of Saruman is washed away. Then Isen can run clean again.’’ He began to pull down a bit more of the walls, in a leisurely sort of way, just to amuse himself.
‘We were just wondering where it would be safe to lie and get some sleep, when the most amazing thing of all happened. There was the sound of a rider coming swiftly up the road. Merry and I lay quiet, and Treebeard hid himself in the shadows under the arch. Suddenly a great horse came striding up, like a flash of silver. It was already dark, but I could see the rider’s face clearly: it seemed to shine, and all his clothes were white. I just sat up, staring, with my mouth open. I tried to call out, and couldn’t.
‘There was no need. He halted just by us and looked down at us. ‘‘Gandalf!’’ I said at last, but my voice was only a whisper. Did he say: ‘‘Hullo, Pippin! This is a pleasant surprise!’’? No, indeed! He said: ‘‘Get up, you tom-fool of a Took! Where, in the name of wonder, in all this ruin is Treebeard? I want him. Quick!’’
‘Treebeard heard his voice and came out of the shadows at once; and there was a strange meeting. I was surprised, because neither of them seemed surprised at all. Gandalf obviously expected to find Treebeard here; and Treebeard might almost have been loitering about near the gates on purpose to meet him. Yet we had told the old Ent all about Moria. But then I remembered a queer look he gave us at the time. I can only suppose that he had seen Gandalf or had some news of him, but would not say anything in a hurry. ‘‘Don’t be hasty’’ is his motto; but nobody, not even Elves, will say much about Gandalf’s movements when he is not there.
‘ ‘‘Hoom! Gandalf!’’ said Treebeard. ‘‘I am glad you have come. Wood and water, stock and stone, I can master; but there is a Wizard to manage here.’’
‘ ‘‘Treebeard,’’ said Gandalf. ‘‘I need your help. You have done much, but I need more. I have about ten thousand Orcs to manage.’’
‘Then those two went off and had a council together in some corner. It must have seemed very hasty to Treebeard, for Gandalf was in a tremendous hurry, and was already talking at a great pace, before they passed out of hearing. They were only away a matter of minutes, perhaps a quarter of an hour. Then Gandalf came back to us, and he seemed relieved, almost merry. He did say he was glad to see us, then.
‘ ‘‘But Gandalf,’’ I cried, ‘‘where have you been? And have you seen the others?’’
‘ ‘‘Wherever I have been, I am back,’’ he answered in the genuine Gandalf manner. ‘‘Yes, I have seen some of the others. But news must wait. This is a perilous night, and I must ride fast. But the dawn may be brighter; and if so, we shall meet again. Take care of yourselves, and keep away from Orthanc! Good-bye!’’
‘Treebeard was very thoughtful after Gandalf had gone. He had evidently learnt a lot in a short time and was digesting it. He looked at us and said: ‘‘Hm, well, I find you are not such hasty folk as I thought. You said much less than you might, and no more than you should. Hm, this is a bundle of news and no mistake! Well, now Treebeard must get busy again.’’
‘Before he went, we got a little news out of him; and it did not cheer us up at all. But for the moment we thought more about you three than about Frodo and Sam, or about poor Boromir. For we gathered that there was a great battle going on, or soon would be, and that you were in it, and might never come out of it.
‘ ‘‘Huorns will help,’’ said Treebeard. Then he went away and we did not see him again until this morning.
‘It was deep night. We lay on top of a pile of stone, and could see nothing beyond it. Mist or shadows blotted out everything like a great blanket all round us. The air seemed hot and heavy; and it was full of rustlings, creakings, and a murmur like voices passing. I think that hundreds more of the Huorns must have been passing by to help in the battle. Later there was a great rumble of thunder away south, and flashes of lightning far away across Rohan. Every now and then we could see mountain-peaks, miles and miles away, stab out suddenly, black and white, and then vanish. And behind us there were noises like thunder in hills, but different. At times the whole valley echoed.
‘It must have been about midnight when the Ents broke the dams and poured all the gathered waters through a gap in the northern wall, down into Isengard. The Huorn-dark had passed, and the thunder had rolled away. The Moon was sinking behind the western mountains.
‘Isengard began to fill up with black creeping streams and pools. They glittered in the last light of the Moon, as they spread over the plain. Every now and then the waters found their way down into some shaft or spouthole. Great white steams hissed up. Smoke rose in billows. There were explosions and gusts of fire. One great coil of vapour went whirling up, twisting round and round Orthanc, until it looked like a tall peak of cloud, fiery underneath and moonlit above. And still more water poured in, until at last Isengard looked like a huge flat saucepan, all steaming and bubbling.’
‘We saw a cloud of smoke and steam from the south last night, when we came to the mouth of Nan Curunír,’ said Aragorn. ‘We feared that Saruman was brewing some new devilry for us.’
‘Not he!’ said Pippin. ‘He was probably choking and not laughing any more. By the morning, yesterday morning, the water had sunk down into all the holes, and there was a dense fog. We took refuge in that guardroom over there; and we had rather a fright. The lake began to overflow and pour out through the old tunnel, and the water was rapidly rising up the steps. We thought we were going to get caught like Orcs in a hole; but we found a winding stair at the back of the store-room that brought us out on top of the arch. It was a squeeze to get out, as the passages had been cracked and half blocked with fallen stone near the top. There we sat high up above the floods and watched the drowning of Isengard. The Ents kept on pouring in more water, till all the fires were quenched and every cave filled. The fogs slowly gathered together and steamed up into a huge umbrella of cloud: it must have been a mile high. In the evening there was a great rainbow over the eastern hills; and then the sunset was blotted out by a thick drizzle on the mountain-sides. It all went very quiet. A few wolves howled mournfully, far away. The Ents stopped the inflow in the night, and sent the Isen back into its old course. And that was the end of it all.