Sarah stared down at the burning corpse of the man, his soul consumed by Endogrev. She remembered vomiting the first time she witnessed Endogrev take a soul. Even though the demon described it to her before he did it, she never imagined the smell that went along with the act.
Endogrev inhaled with pleasure upon finishing the soul, as he always did. He then reached for his chest, casually pulling open his sternum. With two fingers he plucked some of the oozing black liquid from within and closed his chest. He then held the liquid up to his eye, upon being satisfied by its size, held it out for Sarah to take.
Sarah put her finger to the liquid, opening her senses and willing to soul towards her. The liquid rolled down her finger and up her arm to her elbow. It shaped itself to outline the venation in her arm. Sarah focused on the soul fragment, willing it to become one with her own. The liquid changed to mist and ran down her arm towards her heart, vanishing.
Sarah inhaled sharply and staggered back. Binding souls to her own was always a bit of a shock, you always get flooded with the last emotion it hung on to. In this case, as with most consumed by Endogrev, the one she absorbed was filled with terror.
Sarah cleared her throat and collected herself, bringing herself back to her previously non-terrified state of mind.
Endogrev nodded in approval. "You didn't scream this time. You're getting better."
"Ha. You seem to like giving me the scared ones." Said Sarah.
"Perhaps." said Endogrev with his devilish grin. "The night is still young. I take it you want to pay this Crackle a visit?" He asked.
Sarah nodded. Her contact got an open $150,000 contract for a discreet hit on someone named Crackle a few weeks ago. She didn't know his real name, and the pay on the contract was relatively low, so she has ignored it. She was on a mission to destroy the organized crime in the cesspool of a city she called home. She didn't always like it but accepting assassination contracts helped her meet that goal. Organized crime was so cutthroat in the city that crime bosses would pay for hitmen and assassins to kill other faction leaders. So, Sarah used the contracts to make extra money while she worked on her overall goal. The contracts also allowed her to gather information on how the factions were operating, when they were expanding, when new ones surfaced, and how to eventually destroy them.
Endogrev turned to smoke, along with the entire study around them. The smoke from the study dissipated into the darkness revealing the warehouse once again. Endogrev moved towards Sarah and entered inside her through her heart.
Sarah looked at her hand that was once again made of swirling smoke, then out around the warehouse. Sarah extended her senses into the darkness. She could hear and feel every insect and rat moving in the shadows.
In the dark, Sarah could feel, hear, and be anywhere untouched by light. It was her power now, with each soul she absorbed she grew stronger, able to extend herself further into the darkness. All the traits of a shadow demon.
It was all part of their pact. Endogrev turns her soul into a shadow demon, while he uses her as his "vessel".
To Endogrev, a "vessel" is a person of his choosing to be his envoy and protect him during the day. Otherwise in the light, a shadow demon without a place to reside will lose their power and eventually die.
To an outsider they would say she was possessed by a demon, which technically wasn't completely wrong, but Endo doesn't take over her mind and make her do anything she didn't want to. Endo even taught her how to fight, use her new power, and acquire her gear, granted it was for his own interests of making sure she would be harder to kill during the day, but she still appreciated it.
Sarah extended her senses and found the truck with drugs she trashed before coming to the warehouse. She willed herself to it. The bodies of the two thugs were still smoldering next to the dated pickup truck. Sarah Jumped onto the back and investigated the ornate chest on the flatbed. She opened it, the tar-like black liquid in ten plastic bags still inside.
"Why would someone sell souls as drugs" Sarah asked Endo.
"Perhaps like most humans they don't know the soul's true value." Responded Endogrev from inside Sarah's head. "Regardless of what they were for, I'm taking them as my own. Per our agreement you receive one."
Sarah extended her hand towards the plastic bags. With the metal claw on her finger she slashed holes in the bags, then kept her hand outstretched. She could feel Endogrev's presence in her hand, watching as the liquid moved out of the bags and up her arms. The liquid shuttered then turned to mist. The mist raced towards her heart and disappeared. A second later, Endo's misty arm materialized from her forearm, dropping one of the souls he collected into her hand.
Sarah willed the soul to her own, like before, but regretted it immediately. Sarah let out a blood curdling scream and wrapped her arms and tail around her legs. Curled into a fetal position, she started whimpering and shaking.
It took a good minute before Sarah could collect her thoughts and think through the invasive emotion.
"What the fuck Endo!" Sarah yelled angrily. She slowly stood up, still a bit shaken.