"Granger crashed into our dumpsters one night. I found her. We got riotously drunk, and she told me everything. The Ministry has been turning former Death Eaters into Inferi. They’re calling it a Debt of Gratitude. They follow the instruction and will of the ones that turn them. Granger found a way to kill them and keep them dead. I told her I would help her if she promised to keep Draco safe at all costs."