The Vampire Diaries: Stefan's Diaries #1: Origins

They call it the witching hour, that time in the middle of the night when no humans are awake, when creatures of the night can hear them breathing, smell their blood, watch their dreams unfold. It’s the time when the world is ours, when we can hunt, kill, protect.
It’s the time when I’m most eager to feed. But I must hold back. Because by holding back, by hunting only those animals

I was no longer a boy, not quite a man, and utterly unsure of what to do with myself.

Cartwright just celebrated her sixteenth birthday