Ok I know many people talking aboute how the dude had to do while whatever was his name wa...

"Returning to ancestor" is basically a sickness that is caused by too thick wolf blood, that's why they marry different species. Because when they get agitated, they don't turn into a werewolf but to a real wolf and loose everything that was human about them. That's why it should be impossible to turn back, because now he's just an animal. That's why he was taking that powdery medication every morning to prevent this from happening, but missed taking it that morning.

Thanks