With an angry snarl, the Potion Master conjured a quill. "Over my dead body!" After several adjustments, he signed the new contract with a flourish. He would need to meet regularly not only with the wolf but also with Slughorn. He trusted the other Potion Master about as far as he could throw him. In his opinion, he was far too lenient with the students. Only when his signature flared did he realise what had just happened. Wide-eyed, he looked at Harry.