Crowley had scowled when he saw the notice and tried to ignore the stab of jealousy. He liked it when Aziraphale read to him and didn't want to share the experience, but when it was clear that he had no choice in the matter, he decided to attend. Not wanting anyone to know that he was there listening to his partner's softly carrying voice, he lurked expertly in the stacks and kept an eye on who appeared.