[The wizard's soul was a sacred, magical spirit, an extension of the mind. Wizards differed from all other humans, demihumans, and fantastic beasts.]
[Wizards were immortal through their souls. Ghosts were proof of that.]
[No other group of living beings produced ghosts after death.]
[Even the ghosts found among Muggles had once been wizards. Some people simply went their whole lives without realizing they were wizards.]
Will fell into thought. He had already learned something about souls and memories.
He had even considered creating artificial ghosts, but he simply did not have enough test subjects. Werewolf Reversal and the transformation involved in the Despair Curse had used them all up, let alone artificial ghosts.
Wait... Speaking of test subjects... I haven't fed Bellatrix in a while. I haven't starved her to death, have I? I'll check later.
Will returned to the question at hand. Why was this so?
Setting aside wizards like Voldemort, whose body was a product of Ritual Studies, and those who buried themselves in experiments, drank vast quantities of potions, or modified their own bodies...
After death, an ordinary wizard's body was no different from a Muggle's. Looking at the corpse alone, one could not tell them apart.
Yet a wizard's spiritual remnant—a ghost—could sometimes linger in the world.
The more Will thought about it, the more puzzled he became. Then a thought struck him—
He had discussed something similar with Snape before. During Will's second year, Snape had brought it up while teaching him how to process potion ingredients.
They had started with one category of potion ingredients: the magical organs of fantastic beasts. Organs and bones that retained magic after the creature died were generally considered magical organs.
Dragon blood, entrails, hide, and claws... Unicorn Blood, tail hair, bones, and horns... Phoenix tail feathers...
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