Mimi knew that was Arianna from the first scream. Even if she was dead, there was no way she wouldn't be able to recognize her best friend's voice. Hence she planned to come to her rescue only to be held back by that asshole.
"What are you doing?" She glared at Victor who grabbed her by the arm.
"I should be the one asking the question. Where are you going?" He asked innocently yet staring into his eyes gave Mimi suspicions she couldn't chase off.
"That's Arianna down there, isn't it?" She asked seriously.
There was a flash of guilt on his face for 0.1 seconds.
"You don't know what you're talking about, that's not Arianna," He laughed, awkwardly.
All blood drained from Mimi's face, she hasn't told Victor about Arianna. Until now. How then did he know about her? The fears in her heart grew.