Luka dematerialized into the library and immediately noticed that there was someone else in the library. His first thought was that one of the servants was in here reading, the library wasn't off limits after all.
He didn't plan to be sneaky, he just didn't want to show himself and chase them off when the chances of him spending more than a few minutes in the library were very low.
So he soundlessly made his way over, lured in by the sweet scent of tea and pastries, only to freeze when he caught a glimpse of pale hair buried in a book.
Luka hastily backed away, he still hadn't decided if he wanted to show his face at dinner or not. It was a good thing he hadn't charged in, that would have made a lovely mess of things.
Cielo's presence in the library really shouldn't come as a surprise, after all, the Vampire was partly the reason he had wandered down here.