Edward offered a brief welcome:
"All right, today we'll continue last week's lesson: turning beetles into matchboxes." Edward handed out black beetles to everyone. "Remember the key points of Transfiguration I mentioned last week? Belief and emotion. Believe in your magic, and draw on your emotions."
As he spoke, Edward lightly waved his wand. "Your movements should be natural when you wave your wand. Let your hand follow your heart, and let your wand become an extension of your body... Vera Verto."
The beetle on the teacher's desk immediately became a matchbox.
The Slytherin and Gryffindor students copied his wand movement and recited the spell. Cries of "Vera Verto" rang out throughout the classroom, accompanied by the popping sounds of spells being cast.
Edward quickly scanned everyone. Just under half had completed the transformation, just under half had succeeded partway, and only a small number had failed completely.
"Good. Those who haven't succeeded, please try again. Those who have, don't assume you've already mastered today's Transfiguration. Next, you need to keep adding details to your matchboxes. Add the appropriate patterns and pictures, and put matches inside."
"Only when your transformed matchboxes can be opened, and you can take out a match and successfully light it, will you have a basic grasp of today's Transfiguration."
One of the Weasleys raised his hand. "Professor Edward, I have a question."
"Go ahead."
"As everyone knows, Transfiguration lasts for a limited time. After a certain period, the transformed object returns to its original form."
"That's right."
The other Weasley raised his hand. "We're curious. If we take a match out of a matchbox transformed from a beetle, light it, and let it burn away, then wait for the transformation to expire and turn back into a beetle, will part of the beetle be missing?"