Marietta Edgecombe was always logical. Of course she was, being a Ravenclaw. There was no other option. She wasn't just there because blue was her favorite color, was she? So, she was planning for her future, just like the reasonable student. And if she wanted an in at the Ministry (and she did), she would have to prove that she was a respectable, responsible student. And the perfect way to do so was to help the Ministry. And she nearly skipped (not like Loony, though) to Professor Umbridge's polished pink office. Marietta Edgecombe was a sensible person, not a s-n-e-a-k.
AN: Thanks to StarlitReader (eternally brilliant), I was able to sort out exactly how this story will end. Seeing things in writing often helps a lot. Next up is Myrtle.