As the sun sets over the land of Valisthea, strange, dark crystals begin to circulate on the black market. Could they be the sinister fruit of a long-slumbering Mothercrystal-one the world never knew existed? Setting out in search of answers, Clive and company encounter a group of suspicious traders. Their trail leads them to a long-abandoned Fallen tower known as the Sagespire and the terrible secrets that await within.
—https://na.finalfantasyxvi.com/dlc/echoes-of-the-fallen