Lumos

Sage Potter is Harry Potter's twin sister. She was there that night that her parents were killed, in a crib next to Harry's, but she wasn't harmed. She went with her brother to live with her aunt and Uncle.

Being a witch, she also goes Hogwarts with her brother. The main difference between the two of them is Sage is in Slytherin while her brother is in Gryffindor. She doesn't care what her brother thinks about Slytherins and moves on in life.

She has two good friends in her house, Daphne and Draco. She gets along with most of her house, but those are the two that she's closest with.

In their fifth year, Harry causes a problem, and Sage isn't very happy that she has to go along with him to the hearing, just because she's a witch that lives in the house. She just wants to go back to school and talk to her friends, have a normal school year, but she goes to school with Harry Potter, so who knows what a normal year is?

She goes through love and deciding what the right thing to do it. Does she stand by her friends or what is good for the wizarding world, and what could the prophecy have to do with her?