Having the familiars of the British Peerage hand out the flyers to the people living in the territory turned out to be quite an effective method to get the flyers handed out. For starters, all three of the familiars looked like children in their respective human forms. It did probably also help that two of them, Hedwig and Jacqueline, were girls.
Despite the fact that the first batch of flyers had been handed out, not a single one of them had been used, meaning that no one in the British Peerage has gotten themselves a contract and therefore no work as Devils. The costumes on the other hand had arrived via the mail along with the enchanted masks. The mark of Gremory marking the packages making it rather obvious to the Devils on why their costumes weren't stopped or intercepted during the delivery, each package sporting a runic array with a compulsion to simply deliver the packages to their respective receivers without checking it's contents. While it could be considered playing dirty, the members of the British Peerage couldn't help but feel impressed by the feat of demonic magic. The Devils were a bit crept out about the fact that the costumes were absolutely perfect fits, especially since three of the four costumes were, if not completely, but mostly skintight. But they brushed it off as, as the Knight of the Peerage, Ginny Weasley put it, in her words: "Demonic magic is bullshit!". Then again, so was wizarding magic, but demonic magic did at least follow some semblance of logic.
Lilith had been receiving mental notifications roughly twice a day since the erection of the ward that established Hogwarts and its surrounding area as her demonic territory, none of them of the pleasant kind, which gave her headaches of varying degrees rather randomly. As the king of her Peerage and the owner of the territory on top of being the reluctant fourth champion in the Triwizard Tournament, she really didn't want or need this amount of stress. Fortunately, her girls were more than happy to help her relieve the stress through various means, namely by engaging in the safe version of the dance known as the sideway tango, in other words: lesbian sex. Either that or using the Room of Requirement to give Lilith something to vent her frustration upon… using Malthael. And that meant that the Room of Requirement was used to produce a series of humanoid dolls that Lilith could slice apart with her triple-bladed scythe. Fortunately for the Peerage (and Lilith's mental health), they didn't have to resort to the Room of Requirement too much.
The first job that the Peerage got as Devils was something that they weren't expecting. And whoever was performing the summoning was apparently desperate (or possibly frustrated) enough that it would require all four of them. After using the Room of Requirement as a changing room to change into their costumes (during which the little harem spent the entire time sending each other not-so-subtle glances as they got changed (much to the annoyance of the Sword-Devil of the Peerage)), they traveled to their summoner through the demonic transportation circle.
Not even ten seconds later, the Peerage rose from the summoning circle, all of them in costume, accidentally startling their client in the process. The client was an adult wizard, who, judging by the badge on his clothes, appeared to be working with magical law enforcement. Why someone who was essentially a magical cop was summoning Devils was something that the Peerage didn't really understand, but since it wasn't any of their business and as a result, they didn't really care.
The rather disturbing smile Ginny gained combined with the stench of rather fresh blood made it quite obvious why the client had summoned the Peerage. A murder. And considering that the Peerage was in fact summoned probably meant that whoever (or, more likely, whatever) the killer was, wasn't part of the Wizarding World, but the Supernatural World. The biggest clue that suggested that was the strange magical energy that lingered at the crime scene. That and the literally bloody footprints on the floor that were way too small to belong to a wizard (or witch) capable of casting a spell lethal enough to cause enough damage to kill an adult. Their size suggested that the killer was assumingly a child, something that was disturbing in more ways than one.
Analyzing the victim's wounds via a spell designed specifically for on-the-spot forensic analysis revealed that the cause of death was a surprisingly cleanly slit throat and that the killer had proceeded to thoroughly and surprisingly carefully cut the oddemen open and remove a few organs. The disturbing similarities between this murder and the ones linked to the infamous serial killer, Jack the Ripper, back in Victorian London did not go unnoticed. The Peerage really hoped that it was nothing more than a coincidence, but knowing Lilith's kind of luck they might as well expect to running into the original Jack the Ripper, regardless of how ridiculously unlikely that seemed to be possible, let alone actually happen!
Returning to Hogwarts after a fruitless night, the Peerage pretty much immediately hit the hay, with the little harem sharing a bed together again. But not before deciding that they would return to the village of Hogsmeade, where the murder had taken place in an alley, every night and search every single knock and cranny until they found the killer, though what they would actually do when they finally found them was probably something that the Peerage would have to make up on the spot when the time did come. With the first task of the Triwizard Tournament coming up at the end of the month, it meant that the Peerage only had two weeks worth of nights to find the killer.