[ The light metallic tink of batarang could be overlooked, but that second one, the loud creak? There's no way that one is wind, debris, or animal.

She's turned around again immediately, scanning her surroundings sharply. Doesn't she have a spell for this? Anything to detect a hidden person? ...Nothing she can think of, damn. She'll have to fix that. ]

It's unwise to sneak after magic users, especially displeased ones. Come out now and spare yourself the displeasure I would find in a search.

[ The spell for a fireball is at the tip of her mind. Anyone who's putting this much effort into hiding might be dangerous. ]