The Serpentine Stone (гет)

A single difference could change everything, a drop of water upon calm surfaces. Lady Voldemort, daughter of Merope Gaunt and Tom Riddle, ventures into Godric's Hollow on Halloween Evening, 1981. A decade later, Harry Potter, the boy-who-lived, is sorted into Slytherin - another drop upon a surface less calm than before . . .
The First Year of A Flaw in Fate. Prologue included.