Magic isn't about hard and fast rules, though. Or mine isn't. I mean, it has to act according to the basic laws of physics, but it's more like energy or a force of nature than a programming language.

[She draws her finger through the air as if writing in condensation on cold glass, and a glittering trail of gold light follows it for a few seconds, lighting up the dark grey of the castle.] You can do anything if you know how to tap into it.