But quirell knows that Harry possesses the power which kills dementors, so it can’t be related to prophecy from his perspective
‘”he has power the Dark Lord knows not” could mean that the Dark Lord doesn’t know that the power exists, or it could mean the Dark Lord doesn’t know how to use the power. The prophecy didn’t say ‘he has power the Dark Lord knows not of.’
But quirell knows that Harry possesses the power which kills dementors, so it can’t be related to prophecy from his perspective
‘”he has power the Dark Lord knows not” could mean that the Dark Lord doesn’t know that the power exists, or it could mean the Dark Lord doesn’t know how to use the power. The prophecy didn’t say ‘he has power the Dark Lord knows not of.’