"No; I thought he was actually spying on Dumbledore and was truly loyal to the Dark Lord. It wasn't until after Dumbledore was sacked that Severus came to me and performed Legilimency and I thought I was done for. He nodded with relief and helped me concoct the story of the antlers and having to go to St. Mungo's to have it reversed. Instead, we went to Spinner's End and I was told that I had been chosen as a Prefect back in my fifth year because I seemed to be a good counterbalance to Draco's ambitions to be a Death Eater. I was then given a choice; learn Occlumency and be groomed to take then-Professor Snape's place in case he dies, or decline to work as a spy for the Order and have my memory erased for the day. If I couldn't prove myself proficient in Occlumency, I would have my memories wiped and live out my life being none the wiser. Seeing as Severus survived the war, I was never truly needed as a spy."