Say "I solemnly swear that I am up to no good" and the Marauder's card will appear on this piece of parchment. You should know that this card was created by James Potter, Sirius Black, Remus Lupine and Peter Pettigrew during their studies at Poulard. It was Fred and George Weasley who gave him to Harry Potter so that he could go to Hogsmeade. This replica of the Marauder's map corresponds to the authentic size of the original. Its parchment paper perfectly imitates the texture of old paper: it is a very beautiful object for Potterheads.
Reference : RR7888