Although Draco often mocked Professor Lupin, both openly and indirectly, Professor Lupin did not mind at all.
Nor did the other young Wizards hold any prejudice against Professor Lupin because of his somewhat down-and-out appearance.
Lupin's clothes were old, even shabby, but he always washed them until they were spotless. Although he looked down on his luck, he was not at all slovenly.
Moreover, his lessons had won over almost all the young Wizards.
Taking the third-year class Harry and his friends attended as an example, after finishing his lessons on Boggarts, Professor Lupin began teaching them about a kind of Goblin called a Red Cap in the second week.
This was a dangerous magical creature known even to Muggles, and was considered a subspecies of Goblin. It looked like an exceptionally scrawny Goblin wearing a red cap, with a great bushy white beard.
It was a vicious magical creature, and in forests, its tracks could easily be found wherever there was blood.
As humans multiplied and forests grew scarce, Red Caps were among the few magical creatures that had successfully survived in cities.
Behind the bright side of city life, bloodshed was no rarity either. This meant Red Caps often came into the view of Muggles.
Red Caps were among the few low-level Dark Creatures that would actively attack Muggles and Wizards. They were agile, had sharp claws, and could even use weapons.
They posed a considerable threat to Muggles, as well as weaker young Wizards traveling alone.
However, Professor Lupin taught everyone a very simple way to deal with Red Caps: a little spell called the Roaring Charm.
This spell was so easy that even first-year students could just about manage it. Its effect was to produce a loud, full-throated shout that could also lift people's spirits to