Harry POV
When he came back from talking to Ron, Katherine was gone. "Damn it" he felt both sad and relieved, he had lost his opportunity to talk to her but he had escaped the uncomfortable questions she probably had prepared. Maybe she was scared, but escaping was no normal behavior. He went home that day with an uneasy feeling, the girl of his dream had been just in front of him and he let her escape. There was no way that could have been a coincidence. He was given the rest of the day free and he dedicated it to stroll through the crowded London's streets, wandering and thinking about this girl again and again. His steps led him to "The Leaky Cauldron", there he found some old friends having a beer and decided to stay, and have one himself. Seamus and dean had been a very important part of his old life at Hogwarts School and talking about those year's anecdotes always put him in a really good mood, if you add a few beers to the equation it was the perfect afternoon; so perfect that he almost forgot about the girl and the incident that morning. He stayed there until it was well past 7 and then decided to walk home; he was a little tipsy to drive.
Katherine POV
She went home to leave all her shopping bags and her little secret package and get changed to have dinner with Robert in a less private place. She had a shower and put on a simple black dress and some fancy stilettos she brought that morning, jacket, purse and ready to go out and have some fun for one night. Somehow she was not able to forget about those deep green eyes, they haunted her every time she closed her own eyes. The power of a gaze could be very powerful and that one in particular had her completely lost. And that for someone who always wanted to be in control of the situation was serious trouble. She walked to the restaurant, she was early so she had no hurry it was almost 6 in the afternoon when she got to her destiny. Once she was with Robert she turned into a mellow kitten, she loved to deceive men into thinking she was a helpless and sweet girl, when in reality she was a dangerous panther ready to attack her prey but oh well who was her to tell them otherwise.
They laughed and had the most delicious of dinners, apart from blood of course. When time came she said her goodbyes and walked in the opposite direction. Although the dinner was great, she always craved something more filling. A homeless person's blood would do for the night.
Harry POV
The sound of stilettos hitting the ground woke him from his daydream, but before he could find out where the sound came from they stopped and an almost inaudible grunt followed. He was about to walk past the alley when he looked more carefully into the darkness, something moved, an almost invisible shadow crossed his field of view but to be fair he was too boozy to make any shape out of the dark. Someone hit him and walked into the alley, and then he heard a scream, the scream of a woman. "Lumos" he said and as tipsy as he was he could see the woman and a man grabbing her with no mercy by the hair. He attacked the man to set her free but he was stronger than he thought and he was in no position to fight, the man bit him hard in his right shoulder then he cast a spell but it never hit him cause he ran away, he tried to follow but admitted his defeat, at least he had seen his face and he would remember. After the man escaped he helped the woman out of the alley into the lights.