I liked this a lot. However Phineas may not have held that much contempt for the Potters even if they were all Gryffindors; they were purebloods, and one of his granddaughters, Dorea, married 'Charlus Potter' according to the Black family tree, which is currently posted on the Harry Potter Lexicon. It's interesting how when Phineas compared Harry Potter and Tom Riddle, all he could think was 'halfblood'. That seems very in character for him. The ending sentence was nice, rather chilling in fact.

Oh... little dark in the end eh? A little vague, but still good, and in a short story like this, it works quite well. ( yay... more poetic-ness)