Katie, Natsumi and Sara all looked at the door at the same time.
"Are we being too noisy?" Katie asked with a frown.
"I doubt it. The rooms here are all built with thick walls and doors that noise could barely be heard from outside. Every room here is almost sound proof, unless you fired a gun or break something with force. Even the windows were thick and impenetrable with sounds or any breaking and entering. So, it's impossible, unless they put sound recorders where they could hear us, whick my brothers and cousin wouldn't do. And besides, Naoki's party at the pool is much noisier than our slumber party here." Natsumi reasoned out. She even listed all the possible things that could or couldn't occur while a person was inside one of the rooms at their mansion.
"Then I wonder why..."
