Harry Potter is, at the age of 10, thrown 1000 years into the past somewhere in Scotland. There he studies until the age 21 when he decides to return to his age and teach at Hogwarts. - Summary inside - Mild Abuse, Slightly Dark!Harry, Slytherin!Harry, Time-travel, AU, Teacher!Harry, Pureblood!Harry, Heir to Slytherin, Powerfull!Harry, Wandless Magic.