Ooh, this was great! I loved the reason you came up with to get Harry back to Hogwarts, and how fiercely protective Minerva was of Severus. I have a huge weakness for Minerva/Severus friendship fics, so I knew I would love your story right off the bat.
Knew it couldn't be Romilda, as that would be too obvious, but I was kind of rooting for Nev to be the bad guy - lol! Having Horace there though and giving him a collection makes sense, in a sick, twisted way. The man does like to cling to famous people and be well-known.