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Hey everyone, welcome to another installment of Harry Potter Theory.

Today we'll be discussing why Fred and George Weasley never noticed Peter Petigrew,

aka Scabbas the Rat, on the magically revealing Marauders

map?

I suppose to start with we can address the question of, why would they?

Well, as we learn near the end of Harry Potter's third year at Hogwarts School of Witchcraft

and Wizardry, the Marauders map has the capability to reveal each and every person roaming

the hallowed halls of the school,

regardless of their form.

It represents witches and wizards with a dot that has a corresponding name, which is always

their true identity, again regardless of any magic that may make them appear differently

when confronted in person.

And it is through the map that Harry discovers a number of unsettling secrets that have

to do with the night his parents were murdered, including the fact that Peter Pettigrew,

his father's mate who supposedly died that same night, is alive.

How does he discover this?

He sees him on the Marauders map.

But I'm getting ahead of myself.

To rewind a bit, throughout Harry's third year at school, he initially believed Sirius

Black, an escaped convict from the wizarding prison of Asgaban, to be his father's disgraced

...