"Doctor…..stop! You have to stop!" Clara urged. Her voice was frantic; there was a time that the Doctor might have listened to her, but those days had long since passed. As she begged him to stop, he didn't even look back at her. He leaned over the pale blue alien, murder and bloodlust in his eyes. A wicked smile curled on his lips as he dug the knife into a fresh spot on the man's arm. His screams made Clara cover her ears, chilling her to the bone as she watched a fresh open cut cause a new river of red to join the growing puddle on the floor.
"Please…..mercy! Have mercy on me!" The man begged, tears running down his face as he ended his screams. His voice was raw from the shouting and he looked so weak beneath the Doctor.
The Doctor smiled down at him, watching the long trails of blood run out of the numerous lines on the man's arms and make puddles of glorious red on the floor. He could smell the scent of blood in his nose, this alien blood smelling slightly different than any he had smelled before, making him heady with the power to gain more and more. There was a time the screams that he heard emitting from the disgusting filth would have caused him pain, would have caused him to stop. There was a time that he sought to save all life, even scum like this one. But that was long gone; that part of him was dead now and he sought his own justice now. This man was a killer, a pervert and he deserved every last bit of pain the Doctor could inflict on him. The Doctor and Clara had come to this planet to investigate a series of child abductions; through painstaking research they had been led to this man. He had kidnapped dozens if not hundreds of children and sold them into the sex slave trade; but not before he used them for his own purposes. The horror he had discovered upon finding those children made even his cold heart ache. Clara had been inconsolable; he couldn't understand how she now sought mercy for this terrible man. Her stomach was weak; she couldn't see what really needed to be done.
"Mercy? You want mercy from me?" The Doctor asked, his voice shaking with rage as he drug the blade of his knife over the open wounds on the man's arms, making him squeal. "How many of those children begged for mercy as you ripped them from their homes? How many of them begged for mercy as you raped them?!" The Doctor yelled into the man's face as he slammed the knife into the man's arm so deep his screams were ear shattering. Blood bubbled up from the cut and spilled out over both sides of his arms and made the puddles grow. It was a beautiful thing…..
Clara shuddered in the corner, trying to cover her eyes as she watched the Doctor mercilessly torture the man in front of her. She couldn't deny that this man deserved to be dealt justice; but this was not the way to do it. The man she had come to admire for his compassion for everyone was now administering a bitter justice to one had hurt those children in the worst way possible. She knew with certainty that she would see those children in her nightmares for years; the awful pain and suffering on their faces was tremendous. That was nothing to say of the children that they had not got to in time, the ones who forever be owned by another, battered like a piece of property. But as Clara watched the Doctor torture this man, she could see a darkness in him that she had not yet experienced. She knew if this continued the Doctor would murder this man. And she was not sure that was a sight she could ever bear, especially when coupled with the terror of the broken children in her damaged mind.
"Please don't do this…..Doctor" Clara begged. Her voice was quiet and almost childlike. She was begging for the strong, safe man he used to be.
The Doctor turned around to see Clara's crestfallen expression. Doctor had been his title for a great long time but for some reason, in this moment, it sounded not right coming from her wavering voice. "No amount of begging is going to save him" the Doctor said honestly to Clara. "Not his…..not yours. So you can stop asking"
Clara knew he was telling the truth; he was going to cut up this man, slice him up until his breath was gone. The realization of it made her breath catch in her chest, fear and disappointment crushing her. Clara turned and left the room, rapping her arms around her as she ran for the TARDIS, far away from the sight of the blood and soon to be murder that was about to be committed by her Doctor.
The Doctor watched with slight disgust as Clara ran from the room; he hadn't expected any less from her. She was a human; she was weak. It was not surprising, but he had hoped that after the horror she had witnessed that she would agree that only one thing could happen.
The Doctor looked down at the man who was whimpering and crying beneath him and began to laugh. His hearts were beating wildly and excitement filled him. This man had thought himself so powerful, so untouchable. Now he was sobbing, lying in a puddle of his own urine and blood, brought to his knees so easily by the Doctor. "It's not so much fun…..on this end of it, is it?" The Doctor asked, his voice taunting as he dug the knife in the newest wound he'd made. The man screamed again, the sound, as always, filling the Doctor with more and more power.
"Why don't you just kill me?" the man asked miserably, tears and mucus spread across his face.
The Doctor let out a bitter laugh as the memory of the children he'd seen earlier flashed through his brain. He was doing everything that they needed him to do; no one should commit such atrocities and get away with a simple death. "That would just be too easy" the Doctor drawled out, letting the knife drag from his arm, across his stomach and down below his belt, laying on an appendage he had used so poorly. "Those poor children didn't get off easily. Why should you?"
The Doctor pressed the tip of the knife into the delicate skin and the man whimpered. "Don't…..please don't" he begged shamelessly.
The Doctor simply laughed. "I hardly think you get to ask that of me" he said. "You see, I'm a Doctor. I can tell when someone has something that needs removing" he pressed in a little harder. "And considering you have absolutely no idea how to use this…..I, as physician, see that you need to have it removed. I will be…..kind enough to do that for you"
He saw the look of horror cross the man's face for a second before it happened, as he realized there was no escape and the Doctor was serious. With a smile on his lips, the Doctor dug the knife in, relishing the loud screams that became louder and louder before dying off completely.