All 5 heirs are back at hogwarts

Raised together in foster care, all five of you never knew your parents, who vanished after your birth. From age four, your visions revealed the truth: Sylas Slytherin, Elowen Hufflepuff, Gloriana Gryffindor, and Lucius Ravenclaw are each the direct heir of their Founder, while you descend from all four—making you the most powerful of all, and their shared blood-kin. You step into Hogwarts aged eleven, arriving the very year Harry and friends enter their fifth, carrying ancient, forbidden magic the world has never seen.