The_Complete_Chronicles_of_Narnia_(volumes_1-7,_in_order_of_publication)

For a moment no one quite took in the importance of this. But then Reepicheep once
more repeated the old prophecy:
"Where the waves grow sweet, Doubt not, Reepicheep, There is the utter East."
Then at last everyone understood.
"Let me have a bucket, Rynelf," said Drinian.
It was handed him and he lowered it and up it came again. The water shone in it like
glass.
"Perhaps your Majesty would like to taste it first," said Drinian to Caspian.
The King took the bucket in both hands, raised it to his lips, sipped, then drank deeply
and raised his head. His face was changed. Not only his eyes but everything about him
seemed to be brighter.
"Yes," he said, "it is sweet. That's real water, that. I'm not sure that it isn't going to kill
me. But it is the death I would have chosen - if I'd known about it till now."
"What do you mean?" asked Edmund.
"It - it's like light more than anything else," said Caspian.
"That is what it is," said Reepicheep. "Drinkable light. We must be very near the end of
the world now."
There was a moment's silence and then Lucy knelt down on the deck and drank from the
bucket.
"It's the loveliest thing I have ever tasted," she said with a kind of gasp. "But oh - it's
strong. We shan't need to eat anything now."
And one by one everybody on board drank. And for a long time they were all silent. They
felt almost too well and strong to bear it; and presently they began to notice another
result. As I have said before, there had been too much light ever since they left the island
of Ramandu - the sun too large (though not too hot), the sea too bright, the air too
shining. Now, the light grew no less - if anything, it increased - but they could bear it.
They could look straight up at the sun without blinking. They could see more light than
they had ever seen before. And the deck and the sail and their own faces and bodies
became brighter and brighter and every rope shone. And next morning, when the sun
rose, now five or six times its old size, they stared hard into it and could see the very
feathers of the birds that came flying from it.