Here is my reading from Chapter 9 of Book 2, 'The Great River'. Transcript under the cut.
The next day the country on either side began to change rapidly. The banks began to rise and grow stony. Soon they were passing through a hilly rocky land, and on both shores there were steep slopes buried in deep brakes of thorn and sloe, tangled with brambles and creepers. Behind them stood low crumbling cliffs, and chimneys of grey weathered stone dark with ivy; and beyond these again there rose high ridges crowned with wind-writhen firs. They were drawing near to the grey hill-country of the Emyn Muil, the southern march of Wilderland.
There were many birds about the cliffs and the rock-chimneys, and all day high in the air flocks of birds had been circling, black against the pale sky. As they lay in their camp that day Aragorn watched the flights doubtfully, wondering if Gollum had been doing some mischief and the news of their voyage was now moving in the wilderness. Later as the sun was setting, and the Company was stirring and getting ready to start again, he descried a dark spot against the fading light: a great bird high and far off, now wheeling, now flying on slowly southwards.
'What is that, Legolas?' he asked, pointing to the northern sky. 'Is it, as I think, an eagle?'
'Yes.' said Legolas. 'It is an eagle, a hunting eagle. I wonder what that forebodes. It is far from the mountains.'
'We will not start until it is fully dark,' said Aragorn.
The eighth night of their journey came. It was silent and windless; the grey east wind had passed away. The thin crescent of the Moon had fallen early into the pale sunset, but the sky was clear above, and though far away in the South there were great ranges of cloud that still shone faintly, in the West stars glinted bright.
'Come!' said Aragorn. 'We will venture one more journey by night. We are coming to reaches of the River that I do not know well: for I have never journeyed by water in these parts before, not between here and the rapids of Sarn Gebir. But if I am right in my reckoning, those are still many miles ahead. Still there are dangerous places even before we come there: rocks and stony eyots in the stream. We must keep a sharp watch and not try to paddle swiftly.'
To Sam in the leading boat was given the task of watchman. He lay forward peering into the gloom. The night grew dark, but the stars above were strangely bright, and there was a glimmer on the face of the River. It was close on midnight, and they had been drifting for some while, hardly using the paddles, when suddenly Sam cried out. Only a few yards ahead dark shapes loomed up in the stream and he heard the swirl of racing water. There was a swift current which swung left, towards the eastern shore where the channel was clear. As they were swept aside the travellers could see, now very close, the pale foam of the River lashing against sharp rocks that were thrust out far into the stream like a ridge of teeth. The boats were all huddled together.