The real secret is that once you know why it works, you can never cast Patronus 1.0 again. The humanoid form is a clue, so Harry needs to conceal it.
Killing Dementors is awesome, but in the short term the benefit of showing that ability off does not outweigh the risk of leaving all wizards everywhere defenseless against them.
The real secret is that once you know why it works, you can never cast Patronus 1.0 again. The humanoid form is a clue, so Harry needs to conceal it.
Killing Dementors is awesome, but in the short term the benefit of showing that ability off does not outweigh the risk of leaving all wizards everywhere defenseless against them.