Should you ever find yourself in witch prison, sealed by arcane runes because of actions you’ve undertaken (bending the world to your will, etc.), just remember that the reputation you make on your first day will set the tone.
Go up to the biggest witch you can find, introduce yourself, then ask for a boost. If they’re really big, they can chuck you over the wall and you’re out and free, ready to pursue the dark arts again.
[Rune-binding is nice, but it doesn’t make walls taller, so…]