Harry grinned sourly and picked up one of the textbooks. Most of the books that contained dangerous and rare knowledge were written in ancient languages: Ancient Greek, Latin, Old French...Voldemort could understand most of these texts quite well, but he needed time to decipher them: he didn’t want to admit that he had lost a little skill, though Harry had suspected it anyway. He should have started caring about his education, so he could read complicated books and be useful, but he just couldn’t bring himself to memorize any of it.