deathtocapslock | Speculation on Liquid Luck (Reply)

This idea came up in an exchange with, if I recall, madderbrad, but for those who missed it there, here’s my theory on Felix Felicis.

Horace told his class it was “Desperately tricky to make, and disastrous to get wrong.” (HBP 9)

Old Sluggy is glossing over things a bit here because Dumbledore is so hot against any Dark Arts theory being taught at Hogwarts.

It’s potentially disastrous to brew Felix Felicis right. There’s at least one step that has, say, a fifty-fifty chance of blowing up in the brewer’s face. Fatally. And every attempt ever made to make that step less dangerous, shield against the possible explosion, or rework the formula, has resulted in a mess with no luck-conferring properties at all.

Because the brewer is purchasing the luck s/he’s infusing in the potion by taking that risk, in essence offering hir life for the chance of luck. Thus, while there will always be the occasional brewer who’s desperate enough for money or glory to try a batch, it basically isn’t available on the open market.

We can infer that it is not generally available, not for any money, for if it had been, Draco’s mother would surely have purchased some for him.

(Now that I think about it, this might have been the original reason for Tom’s recruitment of one S. Snape. Someone disposable, but good at brewing, to try a batch. If so, how bitter Severus must have been when he realized, and how motivated to prove his long-term value so the Dark Lord would take him off that project.)

Three guesses where Slughorn’s sample came from; he’s certainly never brewed any himself. Indeed, he never claimed to have.