Harry Potter, by J.K. Rowling
The Harry Potter series written by J.K Rowling revolves around a world where unbeknownst to humans, popularly called muggles in the book, a world of magic with actual wizards and witches exists. Harry Potter is an eleven year old boy who has lived with his aunt and uncle and their son Dudley for as long as he can remember, as his parents had died in a "car accident". His aunt and uncle truly despise him and their son doesn't leave any opportunity to make Harry's life miserable. A few weeks before his eleventh birthday, he starts receiving letters with a peculiar red stamp that seem to leave his aunt and uncle so shaken that his uncle drags him to different places to stave off the sender of the letters, but to no avail. However, on the eve of his eleventh birthday, a humongous man barges into Harry's life and shatters his reality by telling him that he in fact is a wizard, a very famous one at that. Both this parents were wizards as well but were killed by an evil, dark wizard called Voldemort. The curious fact being that when Voldemort tried killing Harry, he was unable to and that very night lost is powers.