It's a great idea as it also shows that even though muggles don't have magic in them, they are capable of doing things that the wizarding world doesn't even know.
Thanks for the awesome chapter, Esli-sama. đ»
Not a fan how she revealed and even taught every1 how she did it... And less of a fan that she just gave all the credit to some puzzle maker... wow, what a lame chapter, right after i said every chapter is good with her, too...