Time's ... UP! "Well, let's see how you've done! Blaise ... what have you got for me?
Dumbledore's shown you that--that memory? Well? Hasn't he?
Sir, I wondered what you know about... about Horcruxes?
Harry made Hermione furious. Those days, potions lessons were very uncomfortable, seeing as Harry, Ron and Hermione had to share a desk. Today, Hermione moved her cauldron around the table so that she was close to Ernie, and ignored both Harry and Ron. Ron muttered to Harry and asked what Harry have done after sawing Hermione being like that. But Harry cannot answer it as he being called by Slughorn quietly.
Slowly, Slughorn moved around the room, examining the various antidotes. Nobody had finished the task, although Hermione was trying to cram a few more ingredients into her bottle before Slughorn reached her. Ron had given up completely while Harry stood there waiting, the bezoar clutched in a slightly sweaty hand. End up, Harry did it but both his friends annoyed and not saying anything as they finished the class.
Slughorn voice had changed completely after Harry asked about Horcruxes. It was not genial any more, but shocked, terrified. He fumbled in his breast pocket and pulled out a handkerchief, mopping his sweating brow. Harry told the truth that Dumbledore put him into it after being asked by Slughorn. Slughorn refused to answer Harry questions.