|"Are you a wizard or not?"
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- "Harry uncorked the poison he had taken from Sliughorn’s desk, which was a garish shade of pink, tipped it into his cauldron and lit a fire underneath it. He did not have the faintest idea what he was supposed to do next. He glanced at Ron, who was now standing there looking rather gormless, having copied everything Harry had done."
- — Harry Potter and Ron Weasley having difficulty making the antidote for this poison[src]
On 7 January, 1997, Potions Master Horace Slughorn presented each of his sixth-year Potions students with a phial of this poison so that they could brew an adequate antidote under the principle of Golpalott's Third Law. Harry Potter's very effective solution was a bezoar stone from a goat's stomach, a fact he had learned from Severus Snape's copy of Advanced Potion-Making.
- Harry Potter and the Half-Blood Prince (First appearance)
Notes and references
- Harry Potter and the Half-Blood Prince, Chapter 18 (Birthday Surprises)