Visible To The Trustworthy

The year is 1992. After a disproportionately stressful semester which ended with seeing one of her lions unconscious on a stretcher, Professor Minerva McGonagall is taking a well-deserved cigarette break. But just before she can unwind, an uncharacteristically frightened Harry Potter enters, shaking from head to foot. Thanks to Ichangedmynane99 for the request!