The Endless Song - Joshua Phillip Johnson - Bog

After setting fire to the Forever Sea and leaving the surface world behind, Kindred Greyreach dives below to find a Seafloor populated by roving bands of scavengers. Among them, Kindred discovers a familiar face working to save the Sea from the continued spread of the Greys and the ravages of the world above. But when Kindred finds herself at odds with a faction below the Sea, she and her friends will have to use every power available to them--including their link to the surface world--to forestall disaster.