In a forgotten age, the Ancients sealed away the knowledge of how strange creatures came to inhabit the world and why reality itself bent toward fantasy and peril — marking the beginning of the First Era. Over the following decades the creatures grew fiercer, the dangers multiplied, and the world continued deteriorating in ways no one could explain. Now, twenty-one years on, the last surviving Ancient has decided that hiding is over. Armed with knowledge locked away for generations, they have assembled one final group of heroes to confront the world head-on.