Something Unexpected

When Hermione and Harry return to repeat the their final year of Hogwarts (Ron is now an Auror) but it is very different than well they left it. With everyone grief stricken and angry Slytherins house is completely disgraced, hated and ignored. McGonagall, new Headmistress decides to do something no Head has ever done. Resort all the students hoping for school unity! HG/DM, GW/HP