No one greeted her when she entered her Division. It wasn't unusual for Hermione to be the first one in the department each morning. Many times in the past she was the first one there and the last one to leave. How she was able to maintain a schedule with so many punishing hours was something she didn't always like to consider. There was still a charmed drawer in the bottom of her desk filled with the sort of illegal potions one could find in the darkest corners of Knockturn Alley. Whenever she needed an extra boost to make it through another sleepless night, she would toss back a vial. The nasty, little wizard who sold them to her always warned her that she had to be careful with the number that she consumed. They would become less effective over time and require more to get the same effect. When she was in the midst of her most demanding work schedule, she didn't care. It was only as she began the arduous task of trying to stop drinking them that she discovered how dangerous her old habits really were.