John jumped down and ran over. "Lay her on her side! I need to get that bite right now!" He landed by the girl and looked at the now pulsing  with energy. John cursed and said "Chas, I need everything that we have for a purification now!" He checked Serena's pulse that wasn't stable. He looked at Kay and said "Its dark energy, its burning thru her body. We have to clean her body of the energy now" 

Serena was panting, her eyes dull as she muttered "It hurts...a lot..."