Severus Snape's Greasy Hair (гет)

When a time turner is stolen from the Ministry of Magic, 18-year-old Auror, Harriet Potter, is the obvious choice to put on the case. And so, poor sleep-deprived Harriet works day in and day out to find the thief, on top of all the administrative work she still has to do as an Auror. It comes as no surprise that when she finds the thief and is about to bring him into custody, she rests her blood-ridden eyes for a few seconds. Sadly, the universe doesn't agree with Harriet and 'taking a break' in the same sentence, hence she is thrust nearly thirty years back in time to 1977.
Join Harriet on her epic mission of finding the time-turner-snatching thief, discovering the harsh truth about her parents, and saving the wizarding world for the nth time. And if she manages to save a certain wizard’s hair (and legacy) in the process, what is the harm, right?