Heine meant about the curse. Or the effects of it. But if Jade isn't saying anything, maybe it's all right for now.

He nods silently in response and goes towards Professor Eichel's desk. Keeping the Fiendfyre contained where it is, he casts Accio on letters and comes up with a small stack.

At least three of them are from students. They're already opened, and Heine senses no energy from them, so he takes out the letters inside for a quick read.