In Mid-December the PC's hear a rumor, that the dagger of Bithynia, a relic believed to be connected to the Armageddon prophecy, was going to be transported to the United States, arriving in Laguardia. It is there that chaos breaks loose, as the news arrives that a plane attempted to land on a busy highway.
Investigating the crash site, the PC's discover that the plane had been possibly high jacked by one of the first class customers, who apparently went on a killing spree on survivors before fleeing the scene. They discover that the suspected high jacker/murderer is on Roberto Raposo, a Portuguese cultist.
In the investigation, the PC's team up with two other celestials. One is Kadris, a slow talking and inquisitive angel. The other is Eileth (Officer Amanda Kale), a Lilim who has the role of a police officer. The final celestials that crossed with the PC's are Huzrael and his pack, a group of unsophisticated demons that were easily disposed of.
In their investigation, the PC's discovered a number of leads, which had the characters investigating Portuguese clergy, a hotel and a hospital before they found their quarry. There they discover that Roberto had completed a ritual to split the dagger, and the ritual had been instructed by a demon named Hamet. A demon the characters discover is a powerful Duke of secrets. Hamet has one half of the blade, and the PC's are pointed to his residence, a powerful tether known as Landridge house. It is unknown what Hamet is doing with the one half of the artifact, but clearly some ritual is planned for which the dagger plays an important role.
The characters now have one half of the dagger, which they discover can slice holes in the Symphony, creating tiny pockets of complete secrecy or revelation. By moving the dagger through the air, it creates a great wound in space that only the wielder can see. Once this wound creates a closed loop, anything inside that loop becomes either obscured or revealed, depending on the side of the blade used. A secret area hides disturbances in the Symphony. Absolutely nothing in an area of secrecy disturbs the Symphony at all. In an area of revelation, disturbances in the symphony are doubled. Regardless which effect is used, there is a small echo in the symphony, suggesting an item of great power has been used.
Used in combat, the blades provide +4 to the wielder's melee skill. The blade the PC's have is a "vampiric" blade, and must feast on essence regularly. The PC using the blade must either kill with it, or feed it one essence per day. Failure to do so will cause the dagger to slowly "die". It is believed that a former Demon Prince was trapped in the blade, it is unknown what splitting the blade has done to him.
Arriving and Landridge house in the evening, the PC's discover that the other half of the dagger has been used, preventing what would be a massive disruption in the symphony from sounding. Hordes of petty demons fill the grounds, with howls and hoots of laughter. There are bonfires and their is music, and there is debauchery and murder. Blood and essence flow like rivers through the grounds. Inside the grounds somewhere is Hamet, the powerful Duke of Secrets, possessing the other half of the Dagger of Bithynia, and it is unknown what properties that half has (beyond obscuring/revelation). Furthermore, this is a Tether, but to which demon prince is unknown, and it is unknown what properties this tether has.
The danger of this place is very real, but the clock is ticking.