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"Well, that was unexpected," Tom said, watching how the corpse of a massive rat dissolved into the nothingness. 

"I don't think there was any rule that forbade the monsters from taking over two or more floors consecutively," Claudia said, expressing her own point of view. But while she didn't seem to be influenced by this strange occurrence if one were to judge her words alone, her expression told Tom that the girl was actually mindful about this strange situation. 

"Wel, it works for us," Tom said, shrugging his shoulders. 'There is no point dawdling on this topic,' he thought, casting a quick, stealthy glance at the girl. 'The more we would talk about it, the more worried she will become,' he told himself before shaking his head to forget about the topic himself.