It is not from a book, but I think Rowling made the statement herself on pottermore or its Twitter account. In my opinion it doesn’t make any sense though as firstly the vanishing spell is too complex for pupils under grade ~4 and secondly why would there be all the pipes in Hogwarts then? Did Salazar Slytherin secretly plumb through the whole castle for his little snakey to murder sneakily and nobody noticed?
Yeah, it didn’t make a lot of sense. The no underwear thing comes from a quote from the fourth book of an old wizard “liking a healthy breeze round his privates” when offered a pair of pants. I guess it’s up to interpretation how much breeze he considers healthy
It is not from a book, but I think Rowling made the statement herself on pottermore or its Twitter account. In my opinion it doesn’t make any sense though as firstly the vanishing spell is too complex for pupils under grade ~4 and secondly why would there be all the pipes in Hogwarts then? Did Salazar Slytherin secretly plumb through the whole castle for his little snakey to murder sneakily and nobody noticed?
Yeah, it didn’t make a lot of sense. The no underwear thing comes from a quote from the fourth book of an old wizard “liking a healthy breeze round his privates” when offered a pair of pants. I guess it’s up to interpretation how much breeze he considers healthy