"Draco." Theo was wandering around the place after curfew for a few reasons, but the one he'd have given anyone who asked was something along the lines of the curfew being pointless and Theo being unbothered about any possible consquences.
In reality, he'd been out watching the sky and remembering the sight of dark skeletal forms with torn up wings, his thoughts not about to be verbalised to anybody. That said, he was now just wandering through Hogwarts just because he wanted to and a little because he knew he wasn't allowed - he was a bit of a masochist like that.