Hermione later told the prankster about her own silent vow to never abandon her friend, for which the animagus was extremely glad. At least Harry would have one person that wouldn’t turn him away. The two (plus Remus) began talking about everything that happened, and were quickly becoming disillusioned with the Light Lord. The man had left his godson with Lily’s sister, even though anyone who knew Lily knew Petunia despised her and anything to do with magic. On top of that, Dumbledore had left Sirius in prison—in Azkaban—after the headmaster was the one who cast the Fidelius for the Potters and knew exactly who the real secret keeper was. Dumbledore could have called for a trial, being the head of the Wizengamot. There were many other little things the trio found that conflicted with the image the Light was trying to portray.