During Voldemort's first rise to power, why did he ask for Kreacher's assistance?

Why didn't Dumbledore tell Harry about the Deathly Hallows?

Why did Dumbledore tell Snape to reveal the date of Harry's move to the Death Eaters?

Why is the fact that Snape's Patronus was a doe significant?

Why is there a taboo on Voldemort's name?

Why does Alberforth blame Albus for Ariana's death?

Why was Dobby able to rescue Harry and his friends when they couldn't help themselves?

What did Harry do that made Griphook say that he was an odd wizard and why?

Why was Hermione the one to be chosen to be tortured at the Malfoy Manor?

Why was Voldemort surprised to see Neville Longbottom attacking him?