The Voyage of the Dawn Treader
On my coronation day, with Aslan's approval, I swore an oath that, if once I established peace in Narnia, I would sail east myself for a year and a day to find my father's friends or to learn of their deaths and avenge them if I could. (2.15)
"Why should we not come to the very eastern end of the world? And what might we find there? I expect to find Aslan's own country. It is always from the east, across the sea, that the great Lion comes to us."
"I say, that is an idea," said Edmund in an awed voice.
"But do you think," said Lucy, "Aslan's country would be that sort of country – I mean, the sort you could ever sail to?" (2.18-20)
Where sky and water meet,
Where the waves grow sweet,
Doubt not, Reepicheep,
To find all you seek,
There is the utter East. (2.22)