Vizet and Galen Claudius's conversation soon returned to the subject of "Dark Magic creatures."
"Dark Magic creatures really aren't easy to deal with..." Galen Claudius pursed his lips and sighed.
"Magical creatures such as Merpeople and Centaurs generally have fixed territories, like Hogwarts's Black Lake and Forbidden Forest."
"Magical creatures are similar. Even huge fire-breathing things like dragons can be gathered and managed in Fire Dragon Sanctuaries."
"But Dark Magic creatures are different. These things come and go like phantoms... There's really no telling where they'll appear, and that makes them hard to manage."
Vizet nodded in agreement. Galen Claudius was right; appearing and disappearing unpredictably was indeed a defining trait of Dark Magic creatures.
Although the term "Dark Magic creature" contained the word "creature," making them seem to belong to the same category as Magical creatures, there were actually major differences between them;
The most obvious of these was the matter of reproduction among Dark Magic creatures, Magical creatures, and magical beings.
Books about Magical creatures and magical beings usually, when describing them, mentioned how they reproduced, as well as the changes in form they underwent as they grew.
However, in Vizet's memory, books and materials about Dark Magic creatures rarely mentioned how Dark Magic creatures reproduced, let alone so-called changes in form;
Perhaps Dementors were relatively special in that the process of "increasing the number of Dementors" could be described as "breeding." Dementors also had no need to go through a growth process before being put straight to work.
Generally speaking, books about "Dark Magic creatures" usually described the habitat of a particular Dark Magic creature;
Or they told readers how to judge, by observing their surroundings, what Dark Magic creatures might appear there.
Books about Dark Magic creatures usually mentioned Dark Magic creatures such as Boggarts, Dementors,