At some point Peter has to let go of his fierce over-protectiveness when it comes to Edmund (though not of his own choosing, only in the face of Edmund's hot glare and the hissed words I'm as much a king of Narnia as you are, Peter); sometimes it's a sharp pang, when he sees Edmund's limbs growing out, long and a little clumsy, his face thinner and sharper. Ed's not his baby brother anymore, and won't suffer his protection for much longer.

But sometimes Peter doesn't mind so much--sword in hand and sweat burning in his eyes, the words for Narnia! ringing in his ears, Edmund strong and tall at his back--he sees that in this world of theirs, perhaps they can grow older without losing the blessings of childhood.