They find the energy source

Half an hour later Lois and Kara were hovering over a house in suburban Metropolis. Lois had in her hand a small scanning device which was beeping loudly.

“This is it,” she said. “I can feel the energy beneath me.”

Kara looked down and her eyes began to glow red. Red hot beams shot from her eyes, demolishing the house in seconds, then digging a six foot wide hole in the ground beneath it. Three was an explosion as the gas mains beneath the surface caught fire but they ignored it and slowly lowered themselves down the hole. They passed through hundreds of feet of earth and rock until finally they came to an opening. In the dark they assumed it was a subterranean cave but as Kara’s eye beams lit up the hollow it became clear this was no cave. It was some kind of church, buried for centuries underneath Metropolis.

The walls were black marble, ancient and cracked. The ceiling was held up by thick obsidian pillars. At the center of the room was a huge altar, thirty feet tall, all made of the same black marble as the walls. Sat in the middle of the altar was what they had come for. A huge crystal, pulsing with red light, surrounded by the carved image of a massive demon dominated the center of the room. Lois heard a moan from behind her. She turned to see Kara slumped on the floor. She knelt down and heard her whisper “Kryptonite?”

Kara lifted herself slowly to her feet and tried to fly back up the hole she’d made but she was too weak.

“Please, help me,” she whimpered.

Lois watched her struggle. Something capable of reducing a Kryptonian to such a mess was clearly a very powerful object. She had to have it. She turned and marched towards the altar, As she walked she could feel the power emanating from it strengthen, as if it was reacting to her presence.

“Well hello. You sense me don’t you?” she purred, reaching out to the crystal.

In a blink Lois vanished. Kara reached out towards where she had been. “Mistress?” she gasped before her hand fell to the ground, her strength finally sapped.

Lois opened her eyes. She was surrounded by blackness. A voice slithered out of the darkness, smooth and feminine.

“Life. I sense life. Who are you? What brings you to my prison?”

“I..” Lois was suddenly worried she was in over her head. “I came for power. I sensed your power and I wanted it for myself.”

A sinister laugh came.

“You? You wanted my power? You and your pathetic sparks? Weaking. You are nothing to me, no more than a spider under my foot. I will take your power and add it to my own.”

“Nooo…” started Lois before she was lifted up into the air by an unseen ****. She felt the wonderful power she possessed drain from her body. Released, she dropped to the floor.

“Oh god. What have I done?” she gasped. Her old self was restored. Memories of what she had done, the corruption she had wrought rushed around her head.

“What you have done is given me a way out of my prison. I have rested here for centuries, imprisoned as punishment for the hell I wrought on earth. Feeding on the mortal lusts and deflowering the innocent. They called me a demoness, a succubus. Whatever name they gave me, this stone was the only thing that could contain me. It was sealed with my spirit inside and buried. Now I am free. Now I will leave. You will remain here in my place. All I need now is a vessel. The voice paused for a second, “Ah, I see you brought me one, and such potential. Perfection.”

Then there was silence, and eternal blackness.

The crystal glowed, brighter and brighter then suddenly blinked out. Supergirl’s eyes opened, glowing bright red. She sat up and looked down at herself.

“Oh, how wonderful. Such a beautiful body, and such power. It will do nicely, with a few modifications of course.”

Kara stood, arms outstretched as a blinding red glow formed around her. When it faded the Kryptonian was transformed. Her skin was dark red, her full lips deep black. Huge leathery wings were spread out from her back. Her fingers ended in sharp obsidian claws. She smiled to reveal two sharp fangs in her mouth, a forked tongue slithered out from inside her mouth. The red glow had faded from her eyes, leaving them pure black, soulless orbs. With a single flap of her wings she shot into the air and up through the hole, towards the night sky.

Lois sat, shivering and holding her legs to her chest. Her eyes were held tight shut. The sounds had begun not long after the demoness had left her. Slithering sounds in the darkness, getting closer…