Harry Potter I — The Sorcerer's Stone

When we thought in closure his adventure after, something wrong in 7th year, "The Boy Who Lived" faced a bad conclusion, cut off not known he would do: collecting a resurrection stone of Tom Riddle's in the Forbidden Forest. When done so and been found, split into two, a grown-up and... a young child at the age three. How will his life be, now that he must at will since that stone?