SQUEE!!! Awww...Mystery author, I just loved this! What a fresh take on the Prince/Snape family dynamics. I liked nice!Tobias, the whole characterization of Madam Pince and Severus being a little bit softer person around his father but still Severus. The little twist at the end was awesome, too. This was so nicely done all around.
I have to wonder how on earth you guessed I do have a soft spot for both Filch and Madam Pince as I'm sure I haven't mentioned it *anywhere* other than including them in the list of characters I'd like to recieve for my fic when I signed up.