(I wanted to wait for Derek too... but since we're autopiloting...
I'm going to write this as if it happened before Afton made his move, because invisible Beatrix was already holding Rick down and about to rip his arm off!)
The loud crashing sound Athenodora made as she was thrown against the other male vampire (Afton) gave Beatrix extra energy to make her final move. She pushed Rick's torso forward with all her strength while pulling his arm in the opposite direction. The cracking sound accompanied by he vampire's cry of pain was like music to her ears.
She threw aside the arm and stood far away from him to stay undiscoverable and prepare another attack.
Beatrix watched as the ally male vampire took Rick by the ankle, stopping his attemps to find her, and slammed him against the floor with Athenodora's help.
"Waaay to go my queen," he said. Beatrix laughed, but of course, no one could hear her.