The Harry Potter franchise is home to many magical objects that all play a significant part in the series. From the Sorcerer's Stone and the Mirror of Erised to the Elder Wand, the Resurrection Stone and the Cloak of Invisibility that make up the Deathly Hallows, these and other mystical items have been introduced to and even used by Harry Potter and his group of friends. One of these pieces, in particular, played a prominent part in Harry Potter and the Prisoner of Azkaban by giving Harry some important information relating to the death of his parents and even introducing him to his godfather -- the Marauder's Map.
Source：https://www.cbr.com/harry-potter-marauders-map/
