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harry potter - What Kind of Magic Was Used to Create the Marauder's Map?


When considering canon-based spells, potions, and quasi-sentient objects such as wands ¹, what type of magic was likely used to create the Marauder's Map? I was thinking Homenem Revelio might be involved, but I can't recall any other object in Potterverse that acts quite like the Marauder's Map.


Is there a canonically-based explanation regarding the magic used in the creation of the Marauder's Map?


¹ JK Rowling: Essentially, I see wands as being quasi-sentient. I think they awaken to a kind of- They’re not exactly animate, but they’re close to it, as close to it as you can get in an object, because they carry so much magic. So that’s really the key point about a wand. Pottercast Transcript - The Leaky Cauldron - 01.02.08



Answer



The Weasley's clock is similar to the map in a few ways. The clock tells you something about a person's current status. The map reveals a person's current location. One difference is that the clock is for a set group of people and the map reveals information about a set physical location.



It seems similar magic would need to be done to create both items. I don't recall any explanation for how the clock was created or what 'type' of magic it required to be created but at least I think this shows that there are objects with similar types of magic associated with them.


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