"I have tried the prefects' bathroom..." Draco remarked. "It was quite nice for bathing, but there weren't nearly enough kinds of bubble bath."
"What does that have to do with bubble bath?" Harry reminded him. "We're going there to practice the Patronus Charm, not to take a bath."
"Don't rush me, I wasn't finished..." Draco looked at Harry and said unhurriedly, "The bathing experience is one thing. The environment there is another."
"You probably don't understand Wizet's proposed use of the Patronus Charm as well as I do... The prefects' bathroom has luxurious decorations and water that is always at a comfortable temperature..."
"In a place so suited for bathing, can being there really trigger our 'survival instincts'? Is it really suitable for practicing the Patronus Charm?"
"That makes sense... The water temperature in the prefects' bathroom does have limits. There's no way to adjust it to be very cold or very hot." Cedric nodded. "That was something I overlooked."
Harry said nothing, merely shrugging as if to acknowledge Draco's point.
"If you don't mind..." Wizet said, "perhaps we can practice right here."
"Practice here?" The three spoke at once. They were somewhat surprised, yet also eager to see what Wizet would do.
"I can't provide a very large space..." Wizet drew his wand. "But simulating the feeling of the Black Lake's bottom should be enough for practicing the Patronus Charm."
Ever since creating the Yule Ball space last time, his understanding of the "Harmonic Space Charm" had deepened further;
combined with the "Harmonious Herbology" theories he had studied recently, he could draw upon Ritual Magic's concept of a "medium" and construct a space through more intuitive elements such as sound and scent.
He and Dumbledore had visited the bottom of the Black Lake once. Constructing a space similar to