I Strongly Support Headmaster Dumbledore's Plan

"Air?" another Ravenclaw student chimed in. "We need air to breathe, so 'air' is something we depend on to survive..."

"If we only look at the earlier lyrics, that would be quite a reasonable interpretation. But don't forget, the Merpeople sang more than one line."

Another Ravenclaw student said, "If the treasure is 'air,' then being hidden in something pure means retrieving air..."

"Put that way, it really doesn't make sense! The Black Lake is bottomless, and besides, we're wizards. If we can dive into the Black Lake, we should have already solved the problem of air."

The students began discussing it all at once, and the entire common room became a noisy mess;

After voicing their own opinions, quite a few people clashed with other students in order to defend them, arguing until their faces turned red.

Bang!

At that moment, an explosive sound rang through the common room, interrupting everyone's argument.

"Everyone! Everyone!" Roger Davies, captain of the Ravenclaw Quidditch team, called out loudly. "You seem to have forgotten... what exactly Wizet said just now."

"Wizet said that even if you figured out the clue, you had to keep it to yourselves and not tell him... After all, those are the rules of the Five-Wizard Tournament. We should at least show them some respect, shouldn't we?"

"Exactly! So they can't use it against us." A Ravenclaw student agreed. "Everyone saw what happened with the Goblet of Fire before, right?"

"They've done this sort of thing before!" one Ravenclaw student said indignantly. "It clearly wasn't Wizet's fault, yet he had to face the dragon alone in the end."

"Like that Karkaroff!" another Ravenclaw student said angrily. "He actually gave Harry and the others four points, then refused to give Wizet full marks!"

Seeing that the students were about to