Growing up Black (Gen)

Growing up Black by Elvendork Nigellus
http://www.fanfiction.net/s/6518287/1/Growing-Up-Black

Excellent story, I love this story mainly because it flows so well and is realistic. Rich Squib customers come to the Dursleys for dinner and just happen to hear a voice under the stair. At first he thinks it is a house elf after checking because he was sure he was dealing with muggles he finds he was wrong. Upon realizing it is a child's voice he asks his name, when Marcus Black hears the name Harry Potter he is furious. He calls to his wife Clytemnestra Malfoy Black and after hearing the pitiful excuses and comments they take 6 year old Harry away.
 They know they must do something and Marcus has a portrait of the Potters as he was close to James. After consulting they decide to make him a Black using dark blood magic. He is presented as the son of Regina Malfoy and Sirius Black. And the story takes off from there the most interesting characters to me are Cassiopeia Black and Abraxas Malfoy. Cassiopeia finds out the truth almost from the beginning but decides he has enough Black blood through his grandmother and the blood ritual as well as the power to defeat the Dark Lord and lets not forget being a parselmouth to become an excellent Heir and future Lord preferably dark but would settle for grey. Dumbledore never saw them coming.