The first step of Animagus training—keep a mandrake leaf in your mouth continuously for one month, from full moon to full moon.
The second step—on the full moon, remove the leaf and place it in a small crystal vial filled with saliva. Soak the leaf in it and let it receive pure moonlight. If the night was overcast, you would have to find a new mandrake leaf and start all over again.
Add one strand of your hair and one silver teaspoon of dew to the crystal vial under the moonlight. The dew must be collected from a place untouched by sunlight or humans for seven full days. Finally, add the chrysalis of a Death's-head Hawkmoth.
Place this mixture somewhere quiet and dark. Do not look at it or disturb it again until the next thunderstorm arrives.
Gemini had not even completed the first step yet...
In fact, he had already kept a mandrake leaf in his mouth for a full week when he received a letter from the Ministry of Magic.
The sender was Kingsley Shacklebolt, a member of the Order of the Phoenix who had never had much contact with Gemini before.
At Dumbledore's request, he had written to Gemini. The letter said that during Quirrell's interrogation, it had been learned that while Voldemort possessed him, Quirrell had slept with a pillow pressed against his forehead. Sometimes, Voldemort punished him because he accidentally rolled over in his sleep.
Or rather, rolling over in his sleep was the reason Voldemort punished him most often...
Then Gemini choked on the mandrake leaf in his mouth while laughing and accidentally coughed it out.
Thanks to Kingsley, Gemini had no choice but to wait for the next full moon and start over.
During that time, Gemini also won Slytherin's Quidditch match against