Unfortunately, Mr. Montgomery's potion was not the right colour, not at all. Ari suspected this must have something to do with the essence of Gurdyroot, but it was a sure sign the antidote was ruined. Miss Lestrange, on the other hand, was clearly a dab hand at this, and consistency was perhaps the most crucial element of all in a potioneer.

"And with that, it is Miss Lestrange who will be competing in the NEWT final."

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