Madeleine – she just didn't seem a Maddy – set Hermione to work preparing magical ingredients, while she measured, weighed and otherwise prepared Muggle ones. She was, she told Hermione with quick, staccato sentences, working on a cure for dementia – looking for ways to use magical ingredients to preserve brain function in elderly Muggles. Of course, it would be extremely difficult to distribute to Muggles, but such practical issues appeared not to concern Madeleine Dubois-Volkov.