Today was not a good day for the Black faction. They had not only found the intended master of the Assassin of Black, Hyouma Sagara, along with some woman, dead in the hotel room the summoning was performed, but no Servant, meaning that someone else must have become the master of the Servant. In addition, Fiore, who volunteered to greet Hyouma, had gotten her wallet stolen at some time when she was still in the town.
The only good thing they had gained was a very crude description of what the Servant's master looked like. A black haired girl at the age of sixteen (give or take) with a well developed figure for her age. Fiore had gained this information when she overheard some people talking to each other about them having seen a girl with that description jumping out a window with another girl, who was in her preteens, in toe in the middle of the night.
Somewhere else, in a town not that far away from Trifas, the duo that was Raven and Jack were currently sitting on the roof of the local church's bell tower. Well, Raven was sitting, and Jack was sleeping, using Raven's lap as a pillow. Raven smiled as she affectionately patted Jack on the head, which made the little serial killer snuggle closer to her. She almost found it hard to believe that the little girl resting her head on her lap was/is one of the most infamous serial killers in British (if not global!) history.
She truly felt like she had a younger sister, which made her start recalling the few memories she had with her younger brother, James Potter Jr., who was three years younger than her. She really wanted to see him again at some point but didn't know how to approach him. Then an idea suddenly struck her.
"Maybe Medea can help. It'll most likely not be cheap, but it'll be worth it." Thought Raven, thinking about a certain friend of hers. Medea Kuzuki. A former Heroic spirit whose wish was to be reincarnated so she could be with her new then-boyfriend-now-husband, Souichirou Kuzuki. She was summoned as a Caster during a normal holy grail war. Nowadays she owns and runs a workshop in Diagon Alley, just on the edge between Diagon and Knockturn Alley, where she craft and sell various items she makes using her Item Construction-skill she somehow managed to keep despite losing her status as a Heroic Spirit (A/N: Before anyone ask, yes. This Medea is the one from Fate/Stay Night: Unlimited Blade Works). Raven first met the Witch of Betrayal when she got caught by Medea after trying and succeeding in stealing her wallet, but didn't get very far, at the age of seven. The two of them had been friends ever since. Medea had made and sent her a present for Raven's eighth birthday. An amulet which would send anyone Raven considered worthy of her trust a warning if she somehow, for any reason, found herself in truly hopeless situation, which Raven hasn't 'till this day ever removed from her neck. Medea had provided Raven with work a few times, mainly serving as an assistant in the workshop or as a delivery girl. Raven personally hoped that one day, she would be able to become Medea's apprentice and later business partner. But she knew she'd have to win, or at the very least survive, this greater grail war first. After a few minutes of pointless thinking, she joined Jack in the realm of sleep.
Their peaceful sleep was sadly shattered by the sounds of combat, explosions and gunfire, originating from the streets beneath them. While the moonlight did help make the fight visible, it was still a bit too dark for Raven to see the combatants properly. Fortunately, she had a solution for that problem.
"Noctis Oculus." Chanted Raven, casting the Night Vision-charm, Noctis Oculus, one of the few spells anyone capable of using magic, be it through Witchcraft, Magecraft or Sorcery, could use, granting the caster… well… Night Vision. Once the effects of the spell kicked in, Ravens vision became clear as daylight, letting her see who was participating in the fight below perfectly.
One of the combatants was the blond girl from yesterday, now wearing a red and silver colored suit of armor, swinging a broadsword matching her armor's color scheme. Her opponents were a group of much larger golems. Taking her armor and weapon into account, Raven deduced that the blond was a Servant of the Saber-class. Meaning that the Lion-guy from yesterday was in the greatest of likelihoods her master. The Lion-guy himself was engaged in combat with a gang of homunculi. He was using various necromancy-enhanced hearts-turned-grenades and a necromancy-enhanced shotgun. At the sight of seeing one of the Lion-guy's heart-grenades (or as Raven like to call 'em, Heartbreakers) explode, Jack made an off hand comment among the lines of We're not eating any heart that guy offer us, which Raven found kind of funny, allowing herself to let a giggle escape her lips. Once the necromancer-and-knight-duo left the scene, the Sorceress-and-serial-killer-duo jumped off the roof and went to…work.
"Alright Jack. Let's go to work." Ordered Raven. "You check the homunculi for any usable hearts for later use. I'll salvage what I can from the golems. I might be able to make something useful from their cores."
"Got it big sis! Dim didim dee dum…" sang Jack in a disturbingly cheerful tone as she started removing hearts from the dead homunculi. She found a total of three usable hearts and put said hearts in a plastic bag.
"Son of a bitch!" Shouted Raven suddenly, having discovered something disturbing (judging by the tone of her voice).
"What's wrong big sis?" Asked Jack, obviously concerned for her master/big sister.
"Who in their morally right mind would use philosopher stones as a golems magical reactor core!?" Exclaimed Raven. "There's only two kinds of people I who would deliberately use philosopher stones as magical reactor cores. A completely amoral golem master, or an unaware golem maker who gets their reactor cores from an outside source." She had learned the process of making philosopher stones by accidentally decrypting a book by Nicholas Flamel which contained the recipe for philosopher stones encrypted in its text. And the main ingredient for a philosopher stone was fresh souls, preferably human souls. The stones could be used for a great variety of purposes, but the most common use for it was either as a magical or alchemical amplifier. The stone had a paradoxical law around it. It was illegal to create philosopher stones, but not illegal to use them. "I'm gonna take a wild guess and say that whoever made these stones used homunculi to do so. I might hate how these were made, but they might be useful later, though I honestly hope that I won't have to use 'em."