The Marauder Map is a magical document that will reveal all the rooms and grounds of Hogwarts School of Witchcraft and Wizardry. To use the map one must tap the paper with one's want and recite, "I Solemnly Swear That I Am Up To No Good". Now access to the Marauders Map is yours!! This Officially Licensed Charcoal Grey women's t-shirt features the popular saying in Gold foil lettering. This shirt is 50% Polyester 38% Cotton 12% Rayon and tagless for added comfort. Look for the care and washing instructions printed on the inside of the collar. This shirt is a must to add to your collection. Makes a great gift too.