"Could similar side effects occur if the correct ingredient wasn't added?"
Professor McGonagall and Professor Flitwick exchanged glances. From what Wizet had said, they could vaguely guess which potion he meant.
Professor Flitwick set down his macaron, a peculiar gleam in his eyes. "Wizet, are you talking about Polyjuice Potion?"
Both he and Professor McGonagall had lived through the "English Wizarding War." During that brutal conflict, Polyjuice Potion had seen widespread use.
Thus, both he and Professor McGonagall knew its effects and applications very well. They also knew exactly what consequences would result if the final ingredient was not added correctly.
Polyjuice Potion was an exceptionally complex potion that took an entire month to brew.
Once brewed, its duration varied according to its quality.
The poorest Polyjuice Potion could only last ten minutes, while the finest could remain effective for a full twelve hours.
Although Polyjuice Potion was complicated to brew, it was very simple to use.
When using it, one merely needed to add a piece of the intended person's body, and one could completely assume that person's appearance.
There were many possible choices for this "piece of the person's body"—hair, fingernails, skin, and blood could all be used—but under normal circumstances, hair was the preferred choice.
There was another point to note when adding the "body part": one had to make sure that it truly belonged to "that person," rather than being a nonhuman "body part."
If one drank Polyjuice Potion containing an animal's "body part," one would become half-human and half-animal, requiring a long course of treatment to return to normal.
"Professor Flitwick, Polyjuice Potion is exactly what I meant!" Wizet nodded and drew his wand, giving the notebook a light flick.
The notebook floated into the air and grew along the path of his wand until