Selina smiled at Professor Bentley when she took note of the small smirk tugging at the Head of her House's lips. Although her answer was more common sense she stood by her response. Personal health was an important branch of herbology. Oh yeah, she knew her stuff.

When the blackboard appeared with notes Selina took several seconds reading the directions. Her blue eyes flickered back up to Bentley when the woman talked about blowing things up. The fourth year was almost certain that she would not blow something up in this class. The only class that she did that on a normal basis was, well, potions.

With no wand she repeated, "Chaudensis...CHAUdensis... chauDENSIS.... chaudensis."