It was midnight, with no moon in sight. Derwin was camped out on the roof of one of the housing buildings. The apartments were moderately priced, although in his opinion the property values of Hogsmeade were highly inflated. Derwin took a sip from a canteen he had with him. In it was blood. Unlike humans, he couldn't bring six sandwiches with him on something like this. Instead, he had four collapsible canteens of blood.
He was here on a simple execution job. His target: some guy named James Madison. Madison, or as he had been known before changing it, Pierre Augustus had apparently broken out of a prison in Austria. A wizard, he was not all that powerful, just immensely clever. It had taken Derwin a week to find the guy, cause he was good like that. And because when an acquaintance of his target was confronted with the option of squeal or I rip out your eyes and turn you into a vampire, who would then be blind forever, he chose to squeal.
Derwin waited an hour and a half before Madison showed up. Derwin heard him from a couple hundred meters out, along with a woman he was bringing home. Derwin settled into his nook in the shadows, looking through a pair of binoculars at the couple coming down the street. She was a witch, unfortunately. It meant that he had to take her into account. He decided to wait and bide his time.
Derwin could hear them through the cheap windows going at it. Thankful for all the blood he had consumed waiting for the guy to show up, Derwin began to put it to good use. As with all vampires, he could "burn" any blood he had drunk to make himself more powerful temporarily. In addition, it gave him certain skills that he normally could not use. One of those skills was that he could scale walls without needing ropes.
Climbing down the wall like a spider, Derwin ended up right above the window in the hallway outside Madison's bedroom. Thankfully, it all faced an alley. Derwin reached down and grasped the bottom of the window. Using his enhanced strength, he pulled it open slowly, getting the gap just wide enough for him to slither into. He was through in less than a second. He crept up to the door and placed his ear against it. He could hear everything, the moans, sighs and grunts as the two humans screwed each other. He smiled to himself. This was almost too easy.
He opened the door a crack. It was obscured from their view because neither of them were looking at it. She was bent over the bed while he was pounding her from behind, their backs to the door. Derwin stepped silently up behind the couple, stopping about six feet away. In one swift motion, Derwin pulled the sword from his back, the blade slicing straight through the guys neck in one swift stroke. Without missing a beat, Derwin grabbed the woman's hair, yanked her backward, and, using his open palm as leverage on the the small of her back, threw her like a shotput across the bed and into the wall, as though she had been hit by a stunning spell. He heard the loud thud as her head slammed into the wall. She would wake up, in a few hours, with one hell of a headache, and quite likely a panic attack when she found the body.
Derwin spun on his heel and walked to the window, and slipped out the same way he had come in. Stopping only to shut it, Derwin simply dropped to the alley six stories below. Straightening up, he buttoned his black leather duster and made his way onto the street in front of the apartment...