Belabour - 1. To explain, worry about, or work more than is necessary. 2. To assail persistently, as with scorn or ridicule. 3. To beat vigorously; ply with heavy blows. 4. Obsolete. To labour at.

Mrs Granger worried about Hermione. It wasn't just how lonely she was, but how much she loved schoolwork. She was miles ahead of all the others in her class – the teachers had to get lessons from the nearby Secondary School for her – yet she wouldn't take a break. She laboured constantly, soaking up knowledge like a sponge.

That was before Hogwarts. After Hogwarts, Hermione became more and more withdrawn from her parents. The world of magic had cast its spell over her and sucked her in. Forever.

Yes. Mrs Granger had plenty to worry about when it came to Hermione.