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In Harry Potter and the Half-Blood Prince during the potions class Slughorn claimed that the prize of Felix Felicis was won only once before by a student.

I should point out, however, only once did a student manage to brew a potion of sufficient quality to claim this prize. Nevertheless, good luck to you all.

Who could that student be? What could they have done with the potion?

  • 8
    Probably Lily or Snape, but not necessarily, could be Riddle as well – Simpleton Jan 8 at 13:42
  • 3
    I removed the image because it is of poor quality and I'm not really sure what its relevance is. – TheLethalCarrot Jan 8 at 13:49
  • 11
    Added the movie tag as this quote doesn't appear in the books. – The Dark Lord Jan 8 at 14:34
  • 5
    Snape without any doubt because Harry used his instructions to brew the potion correctly.. – Lobo Jan 8 at 21:49
88

Almost certainly Snape

The Harry Potter Wikia has an article for the student aptly named Unidentified Potions student. In it, it identifies Tom Riddle, Snape and Lily as possible candidates.

  • This student may have been a member of the Slug Club, as Professor Slughorn accepts talented students.

  • It is possible that this student may have been Tom Riddle, but is more likely it may have been Severus Snape or Lily Evans who were both known to have had an aptitude for Potions.

However, we know that Harry was using the recipes from a book that Snape had written in notes and helpful hints and his own recipes in so it would seem most likely Snape was the prior student. This seems all the more true when we look into how good Snape was at potions.

  • 16
    @NeoDarwin I don't know. A user on reddit theorises the following: "I always assumed he took it the night he went to Dumbledore to beg for Lily's life. He was expecting Dumbledore to kill him at sight so he would have tried everything to make sure the message got across." – TheLethalCarrot Jan 8 at 14:25
  • 10
    @TheDarkLord Jealous because he didn't choose you in this list? Anyway, I always assumed it was Snape. I don't have any proof (and there doesn't seem to be any), but IIRC Slughorn says that minutes before Harry uses Snape instructions in the textbook to win the prize. For me, the movie imply that the only student who ever won the prize is the HBP, I may be wrong though. – F.Carette Jan 8 at 15:12
  • 14
    I think it's unlikely it was Tom Riddle, as Slughorn was clearly guilty about his past association, so it seems to me odd that he'd refer to Tom Riddle casually, even if not by name. I personally would think he'd just not mention anything having to do with Tom Riddle at all if he could help it. – Kai Jan 8 at 15:28
  • 74
    Look at what we know: 1. The students were all using the same textbook. 2. Slughorn's class has been using this same textbook for long enough that Snape used it in his time as a student; presumably longer. 3. The textbook's instructions are sufficiently flawed that when following them to the letter, not even Hermione can get the potion right. 4. Snape's amendments to the instructions allow Harry, who only got mediocre Potions marks beforehand, to brew the potion perfectly. Thus, it was almost certainly Snape. Everyone else would have used the textbook's method, which doesn't work. – anaximander Jan 8 at 15:59
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    To pile onto other trains of thought: one student has successfully brewed the potion in Slughorn's class before. One book has the proper instructions for brewing the potion. We know Snape wrote those instructions. So, while it's certainly possible any student at all could have used that book (because, lets be honest, if Harry could follow those instructions most students probably could), it's the most likely Snape is our mystery student. – Lord Farquaad Jan 8 at 16:48
38

Apparently the movie and book represent alternate realities, because this never happened in the book. However, if it would have happened in the book, we can venture a guess that Snape would have been the previous student.

Later in the book (Chapter Fifteen), Slughorn discusses Harry's Potions ability with other teachers, and he mentions the amazing Draught of Living Death that Harry concocted (my emphasis):

"But I don't think I've ever known such a natural at Potions!" said Slughorn, regarding Harry with a fond, if bloodshot, eye. "Instinctive, you know — like his mother! I've only ever taught a few with this kind of ability, I can tell you that, Sybill — why even Severus —" And to Harry's horror, Slughorn threw out an arm and seemed to scoop Snape out of thin air toward them. "Stop skulking and come and join us, Severus!" hiccuped Slughorn happily. "I was just talking about Harry's exceptional potion-making! Some credit must go to you, of course, you taught him for five years!"

Trapped, with Slughorn's arm around his shoulders, Snape looked down his hooked nose at Harry, his black eyes narrowed. "Funny, I never had the impression that I managed to teach Potter anything at all."

"Well, then, it's natural ability!" shouted Slughorn. "You should have seen what he gave me, first lesson, Draught of Living Death — never had a student produce finer on a first attempt, I don't think even you, Severus —"

In the first paragraph he implies that Snape was the best at Potions prior to Harry. In the last paragraph he implies that Snape's attempt at the Draught of Living Death was the next best after Harry's.

If there had truly only been one previous student to brew one sufficiently worthy of the prize it would then stand to reason that this student was Snape.

Of course, this is not ironclad evidence as it is possible that Slughorn used Snape as the example because Snape was there, even if there may have been one or two students that were better than him.

  • Your answer brings up interesting points. The book implies that more than one have won the thing before Harry and Snape (perhaps). – Neo Darwin Jan 8 at 18:39
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    @NeoDarwin Note that in the book it’s just discussing the previous amazing submissions; it never says that there was ever a contest prior to Harry’s year. – Alex Jan 8 at 20:43
-2

It was Tom Riddle. Yes Snape's handbook provides a fool proof way of brewing the potion, but the way the 6th HP movie presents a specific scene makes me rethink that it was Tom. The pineapple sweets. It was the scene where Harry is recalling one of Slughorn's memories in the Pensieve. If we assume Tom has taken liquid luck just prior to the meeting, the scene makes so much sense. The scene begins with Tom asking Slughorn if a certain professor will retire, Tom is probably testing the effects of liquid luck and wanting to get confidential information from Slughorn. Slughorn replies, "well I couldn't tell you even if I knew could I?" Which indicates that providing the effects of liquid luck, to make all of your endeavours succeed as long as possible, Slughorn did in fact not know this information, otherwise he would have shared it. The next line is the killer of this theory really. Professor Slughorn says, "By the way, thank you for the pineapple you are quite right it is my favourite...but how did you know?" to which Tom mysteriously replies "...Intuition." In fact, Tom's use of liquid luck allowed him to correctly identify and purchase Slughorne's favourite sweets, probably in attempts to ease him up to share information about the hocruxes. As we learn later in the movie, he in fact reveals the truth about hocruxes to Tom, thanks to tom's use of liquid luck. What makes this theory especially disturbing is that Slughorn massively regrets this memory, probably because he thinks he helped Tom Riddle achieve power and spread evil and misery in the world when he told him about the hocruxes, not to mention killing one of his favourite students and Harry's mother, Lily. But Slughorn doesn't know that his defences were simply down due to the liquid luck he had awarded his student for properly brewing the potion known as Living Dead. Or perhaps in the back of his mind, he does know liquid luck was used against him and regrets having given it to Tom. Evidence for this could be the way he fantasises about reacting angrily to Tom's request about the hocruxes. Probably how the true encounter would have gone about if not for Tom's use of liquid luck.

  • 2
    This is certainly an interesting fan-theory but all the evidence points to it being Snape, not least because Harry is only capable of brewing a potion of that quality due to Snape's recipe. – Valorum Feb 23 at 10:15
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    This is quite a hard read at the moment, could you edit in some paragraphs to make it easier. – TheLethalCarrot Feb 23 at 10:26

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