Disclaimer: I don't own Charmed or any of its characters.
A scent that resembles brimstone fills the air, its invisible tendrils wrapping themselves around every being in the room. There is an image—to the average civilian, it would seem like three intertwining raindrops—carved into the wooden floor and three women stand at the points. One of them, a middle-aged brunette with porcelain skin, begins to cough and falls to her knees. The other two simply watch her with tears leaving streaks down their dirt-covered faces. And at the center of this triquetra stands a very handsome and well-built man with blonde hair and cold, blue eyes. He is dressed in all black and smiles wickedly at no one in particular. He is proud of what he has done, what he is about to accomplish.
"You tried to save me. You tried to put me on the path to salvation. But where did it get you? Look at what you've become. You're prisoners in your own home and there is not a single paragon of good out there who can come to your rescue. It's finally happened. The Charmed Ones have finally lost. And to who? Their own blood."
He laughs before turning to each of the women, an expression of pure hatred on his face. He begins to chant, his voice increasing with every word spoken. "Powers of the witches rise, course unseen throughout space and time. Come to him who calls you near, come to him and settle here!" Orbs of luminescent light surround the three women before shooting into the man and he inhales deeply. "I hope you don't mind that I tinkered with the spell and changed a few words. Improvisation is a witch's best friend, after all."
The women fall to the ground and the man closes his eyes as he extends both hands. Rays of yellow light are released from his body and meet a few feet away from him, creating a luminescent glow that slowly forms into a humanoid. Within a few seconds, another woman with blonde hair appears in the room. The man smiles as the other three women watch in disbelief and shock.
The oldest of the women manages to get up on her hands and knees and wipes blood from her mouth, glaring at her son. He smirks at her before turning back towards the blonde. "Welcome back, Billie."