The Silent Sunspear: the Abyss (Vol. 86)

Summary

In an underground labyrinth where time flows backward, a disgraced knight seeking redemption in the borderlands discovers a velvet black thread that absorbs all light around it that could summon a celestial leviathan that lives within the deep ocean. Pursued by a rogue celestial navigator who seeks to burn the stars, they must race against time before the crystal spires of the capital city begin to fracture.