From the introduction:
Some months ago, an ancient artifact was detonated on the Tokyo subway system, unleashing the Filth and triggering occult disasters worldwide.
In Maine, an entire island was swallowed by mystical fog. In Egypt, the Black Pharaoh Akhenaten rose from his tomb. The Vampire Queen Mara launched a bloody crusade across Transylvania.
Eventually, agents of the Secret Societies – including all of you – were sent to Tokyo to investigate the source of this madness. There, you encountered the Black Signal, a malicious entity that was once John Copley, the man who activated the bomb, and learned that it had been detonated as part of a power struggle between Lilith, the Mother of Monsters, and her minions.
You were not present for the final confrontation with Lilith, but you know that she has been taken out of play – for now. With her threat ended, attention now turns to other matters in the Secret World...