In the end, he does fulfill the prophecy when it turns out that the man was going to be murdered accidentally all along.
If he cannot fulfill the prophecy, we can at least ensure the men of Erin do not go down without a good fight.
The child lives, but he cannot fulfill the prophecy.
"You think the Eldest's line will not be able to accomplish what they must to fulfill the prophecy?"
When you are old enough to begin to fulfill the prophecy.
If he does not fulfill the prophecy, his life, and the Underland will never be the same.
He is where he needs to be to fulfill the prophecy.
Will, it seems, was born to fulfill the prophecy.
We're making you fulfill the prophecy, even if you don't like it.
Miral has more than enough time to fulfill the prophecy.