How a dark creature differs from a creature that isn't dark..., Gwendolyn kept repeating in her head. This is- easy!, she decided and raised her hand. 'First of all, dark creatures like to harm. Sometimes for no reason', the young Ravenclaw said and made a short break. 'Werewolves, for example, attack people to... pass the disease, or....um... kill them. But werewolves aren't totally dark creatures. They are part human', she finished talking, and then looked around. That answer was a mess!, she thought, trying not to frown or roll her eyes.