Over the following weeks, the D.A. meetings yielded impressive results.
Neville improved by leaps and bounds as well. His Disarming Charm successfully knocked Hermione's wand out of her hand, and more and more members gradually mastered the Impediment Jinx and Blasting Curse.
The biggest challenge now was coordinating the meeting times.
They had to work around three Quidditch teams' training schedules, which changed frequently with the weather, while making sure every member received notice in time.
Hermione racked her brains over the problem and finally came up with a brilliant idea.
At the end of their fourth meeting, she brought out a small, heavy basket filled with glittering Galleons—or at least, that was what they looked like.
She held one up, her clear voice drawing everyone's attention. "Everyone, look at the numbers around the edge of the coin!"
"On a real Galleon, these numbers are just a serial number identifying the goblin who made it."
"But on these specially made coins, which have been enchanted with a Transfiguration Charm—" Hermione continued demonstrating her design. "They change! They show the exact date and time of our next meeting!"
"If the meeting time changes at short notice, Harry will alter the numbers on his coin, and the numbers on every other coin will update to match."
"When the time changes, the coin in your pocket will grow hot! That way, you'll notice immediately and never miss an announcement!"
When she finished, Hermione looked around, eagerly awaiting their reactions.
Instead, she was met with silence.
The faces turned up toward her were filled with amazement and a hint of confusion.
The excitement on Hermione's face faded a little, leaving her looking uneasy. Instinctively, she turned to Jerry. "Jerry, do you think... this will work?"
Jerry was carefully examining the gold coin in his