Vanishing Act

The Daily Prophet calls it the Vanishing Act. In the blink of an eye, without any warning, every witch and wizard over the age of 24 just blinks out of existence. Suddenly the only professor at Hogwarts, Teddy must find out how to not only keep the inhabitants of Hogwarts sane, but also the entire Wizarding World, while trying to find out what happened, and how to bring them back.