first harry potter fanfic

i own nobody but Starr,Angel and Trinity Riddle

3 new girls comes to hougwarts as a tranfer students witch Trinity Riddle happens to be 1 year older than harry but in the same year as him but in a diffrent house

shes in slytherin with her older and younger sister Angel (older by 1 year) Riddle and Starr Riddle (younger by 1 year) but what shes about to find out is

that harry is her half brother by lily

well see what happened was years ago before Trinity was born Voldemort raped lily and got her pregnent but after she had the baby voldemort took

Trinity from the hospital and raised her by teaching her and her sisters dark arts and other magic as they grew up they pretty much mastered it.