Hidden in Plain Sight

Set four years after the Battle of Hogwarts, three years after Draco was abducted by person or persons unknown. Draco is now living in a small Muggle community and working in a library with no idea the Wizarding World exists, until one day, a bloke with a mop of just-shagged black hair comes in for storytime with a little boy to get out of the rain. H/D Slash.