The Lion, the Witch, and the Wardrobe
How we cite our quotes:
"Madam," said King Peter, "therein I pray thee to have me excused. For never since we four were Kings and Queens in Narnia have we set our hands to any high matter, as battles, quests, feats of arms, acts of justice, and the like, and then given over; but always what we have taken in hand, the same we have achieved." (17.35)
At the end of the book, Peter, Susan, and Edmund are still willing to take on new adventures, and Susan is still the voice of conservative moderation urging them to avoid the unknown.