Charms Class Accident

Hermione saw Luo Bin nod. Leaning toward him, she whispered, "Could that 'invisible force' from that afternoon have worked on the same principle as Mobiliarbus?"

Luo Bin followed her gaze to Salasha, who was absorbed in practicing Mobiliarbus. "It was probably a more advanced spell. With Mobiliarbus, the center of an object's movement is the wand in the wizard's hand. But the center of your movement back then was in the deep water at the center of the Black Lake."

"Mm, that makes sense. Let's keep practicing!"

Hermione sat up straight and followed Luo Bin's example, switching her target to a spellbook. After a few tries, she gradually got the hang of Mobiliarbus.

Behind them, Harry and Ron were having a very different time!

The snuffbox on Harry's desk rose five centimeters, wobbling like a drunken Hagrid, then fell with a smack.

He tried more than a dozen times. On his best attempt, it rose twenty centimeters and moved three centimeters to the right before—smack!—landing on the desk.

Ron had it worse. His wand was broken, and the flow of magic simply would not obey him as it passed through it. If he tried to shape the flow like 'Ч', for example, it came out as 'Ц'.

Spellcasting demanded precision; even the slightest deviation would ruin it. He tried more than a dozen times, but his quill never budged.

"Ron, you can't keep using a broken wand. You should write to Mrs. Molly and tell her!"

"No, she'll kill me. Maybe I should learn from Luo Bin. His wand, after all..."

That's not the same thing!

The wand in Luo Bin's hand was half-length by design. Harry parted his lips to object, but Ron had already begun.

He peeled off the magical tape loop by loop. Harry sighed and silently