Type: Charm
Description: Tracks the movements of human beings. The charm has a powerful effect in that it is not fooled by various methods of concealment and disguise, such as invisibility cloaks, the Polyjuice Potion or transformed Animagi.
Seen/Mentioned: This charm was used on Marauder's Map by James Potter, Sirius Black, Remus Lupin, and Peter Pettigrew after charting the grounds and halls of Hogwarts Castle in order to track the movements of everyone within the castle grounds.
