Easily

Sarah strode up to the two Felguards. "Move aside and fetch the others," she said in a commanding voice. "I will have this barrier down in no time." The two Felguards bowed and moved to fetch others not currently busy enjoying the town's women. Sarah took another soul gem and started channeling fel magic towards the building. The holy magic lit up, showing various holy symbols in a shimmering field. The fel magic and the holy magic seemed evenly matched. Sarah however, had counted on this.

She pulled another soul gem from her satchel, summoning the spirit of the recently corrupted Anne. A look of horror appeared on the spirits ghostly visage as Sarah redirected some fel magic to the spirit. The magic intermingled with what was left of Anne, turning her spirit darker and darker shades of blue until eventually, green spots started to appear. The look of horror changed to one of ecstasy as the green colouration spread and the transformation was completed. Sarah directed the fel spirit at the center of the doors, where the main holy symbol was woven into the barrier.

A loud bang followed and then a moment of complete silence as the barrier gave way. The shimmering dome surrounding the building, broke into a thousand burning green embers as the last barrier protecting those inside was shattered. The Felguards meanwhile had returned with some of their kind, as well as various other demons. Among them many Imps, Felstalkers and even a few Sayaad or Succubi, female winged demons which specialized in sexual magic.

She addressed the gathered bunch of demons: "Our objectives here are nearly done. All that stands between us and the full conquest of Lakeshire, is this door and those hiding behind it! Kill the men! Take the women! But leave the priestess. She is mine!" Cheers erupted as Sarah turned around. She released a wave of powerful fel magic and the doors burst open. Her demon servants streamed in as the hall inside erupted in terrified screaming. Sarah readied herself and entered the building.

Inside was chaos. There was fighting, there was screaming and there was even already some fucking. Fireballs and magic bolts flew across the room as sword met sword and shield met shield. Sarah moved swiftly through the **** all the way to the back of the room, where a large stage was situated. She arrived just in time to see the last of the youths of Lakeshire escape through a portal. With a simple firebolt, the portal was gone. Standing behind where the portal used to be was a small brunette in the robes of the priesthood of the Light. She was panting, holding the portal had clearly taken a lot out of her.

Sarah walked up to the woman, conjuring green chains around the priestess as she spoke: "Long time no see, sister." The priestess looked up in disgust. "I knew you were a bad apple, Sarah, but to resort to this..." she said, motioning her head towards the rest of the room. Sarah slapped her sister across the face. "You do not get to judge me after what you have done to me!" she shouted with rage. "I was just a curious child, looking for ways to better myself. And you made them send me away! No, this...," she said motioning to the rest of the room. "This is all on you, Eveline. You made me what I am!".

"This isn't you! You can resist the fel's influence. Stop this. Let me help you.", Eveline begged her sister. Sarah laughed. "Why would I want to resist? When it feels so good, so powerful, so right! Soon you will understand, dear sister. Once I make you mine." Sarah took another soul gem from her satchel and pulled the cord on the back of her robe. She undid the knot and let the garb fall down her shoulders. She stepped out of the pile of cloth and stood on the stage in her full naked glory. The fighting had died down and the noises of combat were being replaced by those of grunting and moaning.