Emily pretended to be interested in the "real magic" that Hermione was studying a couple of times, but Hermione wasn’t fooled. She’d tried to show her nanny the magic squares of Agrippa and Paracelsus, which had all the numbers adding up to the same answer whether you read a row, column, or diagonal line, and Emily just got bored. Her mummy had thought they were very clever, and she knew Julia would have loved them.