Emily thought it was cute that Hermione still played magic games with her imaginary friends, and was happy to ignore her charge and watch television downstairs while Hermione read her "secret books" to her friends. And every so often Hermione would, with a little research into the proper goetic seal and some advice from Crocell about proper rune placement, draw a chalk circle and summon a new demon to chat to. Once they’d been called upon once, they were usually happy to visit again with much less ritual. But she generally stuck to her favourites.