"I..." Matthew realised at once that he was in a difficult position, really; his sister's flatmates were being rather overprotective of her -- hadn't they heard her say he was her own BROTHER? Still, however, he was determined to break the news -- both good and bad -- before he was summarily thrown out of the flat, and so he said quickly, "That is -- you don't need to fear him anymore, Di! Please, just listen to me for a moment! I mean to say, he's very ill--" Though the fact that he was being poisoned by his kid brother was something he was determined to keep under his hat for now -- for who knew whom exactly Diana talked to after the deed they'd... paid her for (what a wrench it was to think of his sister selling her body in such a fashion, particularly after all she'd been through with their father!) -- "And he's not going to be able to hurt you that way, ever again! I mean, he confessed to Uncle Nicholas, thinking he was close to death...!"
Which, Matthew mused, he rather was -- though how quick or slow a death it would be depended entirely on him. He gulped hard, thinking of such a responsibility for his own father!
"I mean to say-- PLEASE, won't you come home and stay with me? You don't have to live this life anymore...! My own SISTER -- not to mention my ward in the absence of Father --" He spit out this title like a profanity -- "Would be a Pureblood, as much as I am...!"