Since the beginning of history, humanity has measured time in ages. Ages of glory, of Dreams, and even of Great Sorrows mark the human tally of the years, giving a sense of order to the events of past centuries. But one age has yet to occur, an age of darkness, of decay, and of writhing doom. Witty bards and wrathful preachers know it as the Age of Worms, weaving it into the peripheries of their passion plays as a mythic era of destruction that could begin at any time. Astrologers, diviners, and servants of the fates know more. The canniest among them fear that the Age of Worms has already begun.

The Age of Worms is an age of darkness and despair heard of only in ancient prophecies. According to these prophecies, the Herald of the Age of Worms is said to be the undead deity Kyuss, the Wormgod, who is somehow involved with the Cult of Ebon Triad.

https://startplaying.games/adventure/cm45gnro0001plg5gcaf5lcvh