Horgarts Stories

Crazy things are happening at Hogwarts and this time it has nothing to do with Harry and Co. When students start wandering into the Forbidden Forrest and going missing, Ilvermorny transfers Ace and Elsie decide to investigate. The problem is Draco's noticed some weird things about the twins. They don't talk to many people, they can't recall much from Ilvermorny and there are no documents with their names on it in Hogwarts. Who are they? What's happening to the students?