From back of first book in the series:
The Secret World, a daydream shadow of our reality, waits for you. Break down the walls of disbelief . . . join modern-day angels, dragons, elves, vampires, mythic gods, nightmare lords, immortal grail knights, werewolves, and others on adventures.... THE EVERLASTING is an epic modern day fantasy and supernatural setting with a fully developed mythology and culture for each race of Eldritch.
...Each Foundation book is a stand-alone game, but all of them are fully compatible with one another.
THE EVERLASTING is The Interactive Legendmaking Experience. It features many new concepts: communal protagonists, customizable rules, gamemasterless options, tips on rewarding guides, dream control methods, opening and closing ceremonies, and Personal Mythology. Legendmaking takes you beyond roleplaying and storytelling to a new level of intensity. Each participant chooses from playing card, tarot card, dice, and freeform options the system personally preferred.
Your journey into the realms of modern-day fantasy... begins now. Enter the magical world you have always wanted to visit . . . the one you live in.