That cliffhanger seems like it was from a different anime. The music definitely was perfect, with that booming evil sound. Reminded me of 'Full Metal Alchemist' kind of thing. Well, it was weird that we had been seeing Robin's full, childish smile for a long while now. Elbaph's visuals were refreshing and a picturesque view from a children's book, like 'The Wizard of Oz' or 'Alice in the Wonderland', while the library had this aura on Harry Potter's, too.