The Riddle's Love

What if, on that fateful Halloween night at Godric's Hollow, Remus and Sirius were able to take their young godsons Harry and Fenriz Potter to Potter Manor and raise them there, away from the wizarding world?

What if Harry's brother Fenriz attended Ilvermorny instead of Hogwarts until he and Harry's sixth year?

What if Voldemort had two sons who are Harry and Fenriz's age, and Slytherin princes?

And what if they set their eyes on Harry's brother?

Oh, and I'm making Hogwarts go for nine years rather than seven, with the Tri-Wizard tournament happening in their seventh year.

Creature inheritances will happen in times of intense emotions such as anger or joy after a witch or wizards eighteenth birthday