Because of what was recorded in the Marauders' Notebook, Harry began to take an interest in dark magic and white magic.
At present, there was no way to research and study dark magic at Hogwarts. After all, Hogwarts no longer taught it.
There were books on dark magic in the Library, but they were all in the deepest part of the Restricted Section. Although Harry could get in with his Invisibility Cloak, he had no plans to do so for the time being.
For now, he still devoted more of his attention to his coursework, researching white magic on the side.
White magic was generally considered synonymous with protective magic, the most typical example being the Patronus Charm mentioned in the Marauders' Notebook.
Harry had thought so too.
This was not the first time Harry had heard of the Patronus Charm.
Among Ron's many Wizard Cards, there was one that was not the rarest, ranking around the top ten, but was nevertheless Ron's favourite. The figure on it was Andros.
In the era when this wizard lived, he had been known as Andros the Invincible. He had been one of the most powerful wizards of his time.
His most distinctive trait was his ability to cast a Patronus Charm taller than a giant.
The Patronus Charm could ward off many mental spells and dark curses, and could also suppress many dark creatures with an affinity for darkness. It was highly sophisticated protective magic.
It was also the most effective spell known for repelling the Lethifold, a magical creature with a five-star danger rating.
Although Harry knew little about it, he had long yearned to learn it.
Returning to white magic and protective magic, Harry had originally thought the two were equivalent.
However, the writer of the Marauders' Notebook seemed to