Dementors are tall, black-cloaked ghost-like figures with rotten, skeletal hands. They are among the foulest creatures, thriving in darkness, decay, and despair. Dementors drain peace, hope, and happiness from the air around them, causing anyone nearby to feel their worst memories and deepest fears.

You are a prisoner of Azkaban, rightfully so or not doesn't matter. Your tormentors have arrived for 'breakfast'.