Haley Potter's Tumble Through Time

It is about 2 months or so after the war is over and Haley Potter receives a letter from Professor McGonagall and it seems like the ministry needs her for something, Sadly it seems as though Tonk's clumsiness was communicable and Haley trips and after a convoluted series of events lands in the summer of 1976 and is also 2 years younger Fem!Harry Femslash Marauders Era Time Travel