Sunny nods, then asks, "Jerome?" Sunny has undoubtedly told Magnu all about Jerome Squalor by now. She has told him about how Jerome had a big nice home, where all three of the Baudelaire orphans had their own bedrooms, and how, even though they may have been oversized and ugly, he got clothes for them, and how they had plenty to eat, even if it was sometimes gross food, and how they didn't have to do all of the horrible chores and other tasks that they had to do with certain guardians who shall remain nameless. But she has also told him how, even though Jerome had all of these nice qualities, he abandoned them, right when they actually needed his help. How the Quagmires are, at least as far as Sunny knows, still kidnapped, because Jerome refused to do anything. How he was scared, and in being scared he failed to do the most basic task a guardian is meant to do, which is to help keep them safe. How he walked away from them, seemingly not even caring.

So when Sunny asks, "Jerome?", Magnu will know that what she means is, "Do you think he's like Jerome Squalor?"