On the third day of the new term, the Aurors and scouting teams began a frenzied search operation.
Their efficiency was high, and they had found nearly all the hidden passages.
At this rate, it was only a matter of time before they found the Room of Requirement.
Vincent naturally could not just stand by, even if they might not find the secret base.
There were many ways to completely conceal the Room of Requirement, the simplest being to use the authority of the headmaster or a School Board Member.
But doing so would be the equivalent of revealing a trump card right under Dumbledore's nose.
You could never truly know what was in another person's heart. Who knew whether he might betray them?
So Vincent spent an afternoon using alchemy to create a compound made primarily of quartz and calcium.
It was colorless and odorless, and could effectively absorb light.
If it was applied to an object's surface, then no matter what changes occurred on that surface, the eye could only see what it looked like when the substance had been applied.
Unfortunately, it did not work on transparent objects, but it was enough to completely hide the Room of Requirement.
Vincent spread the coating evenly across the wall, then returned to the Owl Court common room.
The students were not laughing and joking as they usually did. Instead, they had gathered together and were quietly complaining about something.
"God! They didn't even spare the lavatories. Good thing I wasn't in there at the time."
"I heard they didn't spare the girls' lavatories either, but there were only two or three female Aurors. They weren't as bad as the men."
James and Alfred's conversation reminded Neville of something unpleasant that had happened that morning.
He had been in a