Vad hände med boken om halv-blodprinsens potionsframställning efter att Harry gömde det i kravets rum?

Du har rätt i första instans, lyckades Harry inte få tillbaka boken.

Alla är några större och mindre 7: e bokspoiler

And so it burned (as well everything in the room) when Crabbe casted Fiendfyre inside the room in The Deathly Hallows.

Som du kan se här:

"I know what the diadem looks like, and I know where it is,” said Harry, talking fast. “He hid it exactly where I hid my old Potions book, where everyone’s been hiding stuff for centuries. He thought he was the only one to find it. Come on."

och sedan:

There it was, right ahead, the blistered old cupboard in which he had hidden his old Potions book, and on top of it, the pockmarked stone warlock wearing a dusty old wig and what looked like an ancient, discolored tiara.

Harry lämnar boken i kravet, dess öde skulle i slutändan vara att det brinner i bok 7 när rummet brinner ner (om inte en annan okänd student finner den mellan slutet av 6 och slutet av 7).

below them the cursed fire was consuming the contraband of generations of hunted students, the guilty outcomes of a thousand banned experiments, the secrets of the countless souls who had sought refuge in the room.