The Lost Winterfell: the Fallen Star (Vol. 90)

Summary

In a decaying cathedral on the edge of the world, a disillusioned scholar who lost his memories discovers a silver cylinder containing the memories of a fallen emperor that could summon a celestial leviathan that lives within the deep ocean. Pursued by the Ash King, an ancient warlord entombed beneath the bedrock, they must race against time before the stars align to form the shape of the dragon's eye.