The Room of Requirement was sometimes less a place that instantly arranged itself into whatever its seekers needed than a storeroom piled high with old things.
Pomona and the House-elves found a large tent there. It had most likely been used for some large event, then forgotten and left behind.
It could still be used as long as the holes Doxies had bitten in it were repaired. Pomona then had the elves keep searching, and they found several smaller tents. Each had been enlarged with an Extension Charm and could be divided into several rooms. Once furniture was placed inside, there would be no need to rent houses in Hogsmeade for the students. Camping by the beautiful Black Lake in the height of summer might leave them with wonderful memories. She felt quite pleased with her own "wisdom." She absolutely was not doing this to save money.
"Head of House," said the House-elf Honey. "The Head of Ravenclaw is waiting outside for you."
Her good mood vanished at once.
"Tell him I'm not here!" Pomona whispered.
"Honey cannot lie to wizards," the House-elf said pitifully.
Pomona rolled her eyes and trudged out of the Room of Requirement.
Filius stood in the corridor in a crisp tailcoat, looking as though he were about to attend a concert.
When he saw Pomona emerge from the Room of Requirement covered in dust, the two stood silently facing each other for a moment before he said approvingly, "That outfit suits you perfectly."
"Thank you, Filius," Pomona said politely. "Yours suits you perfectly too."
Flitwick let out a heavy sigh, shook his head, and headed down the stairs on his short legs. Pomona followed behind at an unhurried pace.
At that moment, she keenly felt the advantages of authority. Minerva did not need to participate