Dementors are among the foulest creatures that walk this earth. They infest the darkest, filthiest places, they glory in decay and despair, they drain peace, hope, and happiness out of the air around them … Get too near a Dementor and every good feeling, every happy memory will be sucked out of you.
Ok so I know the INITIAL process of becoming and animagus is ridiculous, like holding a mandrake root in your mouth for a month and stuff but then what after that? How do you ACTUALLY transform every time after that? Is there an incantation? A specific process? Or do you just think, “Right. I’d quite fancy turning into a walrus right about now.” and BAM! You sprout tusks???