Agie raised her hand. She wasn't entirely sure, but she at least has a few ideas "The Fidelius Charm would be a great security measure i would say professor. This is because it an completely hide a person or a place in such a way that no one can find them unless they are given the location by a secret keeper. I would just love to learn about that, although I'm sure it's very advanced for us to learn at school. So if i had to think of a more practical charm i would suggest the Obliteration Charm. This is because it has a great security mechanism of removing the traces or tracks left by someone, allowing for someone to travel without the fear of being tracked or without someone knowing you've been there."

Agie then laughed to herself "Which is perfect when we want to venture around the grounds without being caught."