Soon after completing Mum's the Word and In the Shadow of the Mine, Natty will send you a letter asking you to meet up with her just south of Hogsmeade. After speaking to Natty, head into Hogsmeade ...

As soon as you begin talking to him, Sebastian, he'll explain that he didn't want to hurt his uncle and didn't mean for any of this to happen. Sebastian will then ask for you to talk to Ominis, and ...