We start reading about The Mysteries with my players and a lot of solicitudes are made with the start of a new spin-off Saga.
For the most part, I don't have problem devicing and writing certain things to the Mystery Cults present in the text. But one of my players made a request I have interest but not the mechanical imagination.
He wants a Mystery Cult center around the idea of Magical Creatures as friends and some interest in familiars. All to have this end goal of having a familiar dragon or phoenix.
I have some ideas, maybe the Soqotra elimination of familiar Might and some spiritual form of pact for the end of the mystery tree. But I don't have to much for the start and the middle. And even less ideas for the structure and philosophy of the Cult.
I still like the idea, and is less than a day from that request so I still got plenty of time (like three weeks or so). But asking for advice never hurt, and here I am.
Sorry if the english is not perfect, spanish speaker here.