HP- Lost legacies of magic

What will happen, when a highly intelligent, unknowing, lil muggle raised wizard, stumbles upon magical britain without hogwarts as a prior introduction? what choices will he make? How will this 'unique' society affect him? How will he react, when the fairy tales he read as a kid, suddenly come to life? Follow young Theodor Blake's journey in the magical universe of harry potter as he uncovers his past, unravels secrets of lost magic and even falls in love. Disclaimer, i don't own the story nor the characters or world, only my OCs