Chương 173: Evolving Lightning Flash

"Ariel... How's the spell going?" Serena asked. 

"I'm... doing fine... But it's getting harder to control..." Ariel replied with an exhausted look. 

The two were panting and both looked out of breath. 

"Yeah... I can agree with you on that, but we have to hold on. Those guys have been going at it and have shown barely any signs of slowing down." 

"That's right, they're... amazing aren't they...?" 

"Amazing...? I was thinking the word 'monsters' would... suit them more..." 

"Will we really be able... to take that thing down with this spell...?" 

"I'm not sure... We never used it before... But we must do something..." Serena muttered. 

"Then... Let's make sure to pour everything into this attack..." 

"Of course..." 

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With John facing the girl head on while Master Sylvia attacked from her blind spots, the two continued their combinations of attacks.