From publisher blurb:
Ave Custodes and Demiurges!
Every September, in a town near Athens, are performed the rites known as Mysteries of Eleusis, popular all over Greece and beyond, even if featuring numerous secrets known only to their initiates.
Their center is the town of Eleusi, 11 miles from Athens, seat of the Telestèrion temple complex, accessible only by the initiates to the Mysteries.
The presence of the Custodes has been explicitly requested by the local authorities to prevent other, less tolerated cults from infiltrating the celebration.
Usually, this manner of task is hardly any news for the Cohors Arcana, but this time things seem to be complicated.
When the Custodes arrive, waiting for them is the local Aedilis, Marius Mucius Atticus, accompanied by a few notables, with a delicate and disconcerting case to present to them.
In Lex Arcana, you are a Custos (warden) of the Cohors Auxiliaria Arcana, sent by the Emperor to the four corners of the world to further the study of arcane lore, investigate forbidden cults, and face the thread posed by dangerous supernatural creatures.
This PDF contains:
a 7 pages adventure set in the city of Eleusi, near Athens
a deep description of the Mysteries of Eleusis, a series of ancient rituals that are part of the Official Cult of the Empire
a description of a new item, the potion of deep slumber
stats and description of Sapros, an Eurinomo pack leader, un upgraded version of the Eurinomo’s stats of the Lex Arcana Corebook
Per aspera ad astra!