From the Rulebook:
Magic is dying, and the Magus is dying with it. We travel together to the realm of the Umbra where magic was born.
Fall of Magic is a collaborative storytelling game where we play as a group of travellers in the company of the Magus. On the way, we'll encounter stranger hosts, fantastic places, and perilous choices as we play to discover who our characters are, how they relate, and how our journey changes them.