On a freezing night at Hogwarts, theseus Snape walks through the dark halls of Slytherin, Severus at his side with a penetrating gaze holding some books to his chest, Theseus stopped in front of his brother with an amused and playful look "hey Severus, what day is it?" " Severus stared at him indifferently "January 9th" he says arrogantly as he continued to walk Theseus smiled and put one foot in front of Severus "do you know what day it is?...Our anniversary!!"