"Where is Eustace?" asked Lucy.
"In bed," said Edmund, "and I don't think we can do anything for him. It only makes him worse if you try to be nice to him."
"Meanwhile," said Caspian, "we want to talk."
"By Jove, we do," said Edmund. "And first, about time. It's a year ago by our time since we left you just before your coronation. How long has it been in Narnia?"
"Exactly three years," said Caspian.
Eu não me lembro (e não gostei, não vi) como uma declaração no final sobre quanto tempo eles se foram, mas alguns parágrafos após a citação acima, Caspian afirma sua intenção sobre quanto tempo eles velejarão :
"Right. Well, 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. These were their names: the Lord Revilian, the Lord Bern, the Lord Argoz, the Lord Mavramorn, the Lord Octesian, the Lord Restimar, and - oh, that other one who's so hard to remember."