Arriving at the battle scene, The backup team sprung into action. They started attacking the demon but everytime it gets attacked, it regenerates. To vanquish a demon one has to destroy it's core, "We've attacked everypart of it's body unless.." isabelle came to a conclusion and said "it can move it's core"
"On my orders everybody stay back" Isabelle said and nodded towards isaac. He understood and took out an arrow and shot it towards the demon. The demon caught it and crushed it. If you could make out the expression on it's face, you would say it was smiling. But soon it's smile froze because another arrow was lodged on it's head, it went as far as to the back of it's head. Now it was isaac's turn to smile. The crushed arrow in it's hand was just a cover for the one that lodged in it's head. It took a lot of spiritual energy from him to conceal it. What followed was an explosion of spiritual energy in it's head. It stunned it for a while. During this time Isabelle had been charging up, absorbing a lot of spiritual energy and just as the arrow exploded in the demon's head, she took action and ran towards it, staff in hand, spinning it at a speed that ordinary eyes couldn't follow. she leaped into the air and struck it's chest. the staff pierced it's chest, blood splurted out. Then she started pouring out the spiritual energy she had accumulated into the staff. Electrical sparks, or rather sparks of spiritual energy started flowing into it's body, passing through all it's meridians. It flowed to every part of it's body until it's entire body was lit up: it was a sight to behold. Well, an explosion didn't follow, instead the sparks gathered at one point, all the demonic energy had been pushed towards this one point.This was where the demonic core was located. Then an explosion followed: because demonic energy conflicts with spiritual energy. The demon was turned into ashes and faded: It was vanquished.