Frankly, I think people get too hung up on asking for 'the main plot' with something like 'Submerged'. The way I see it, the plot is just the frame that holds the real substance. A woman, Val, goes to an isolated island to catalog plant life after a personal tragedy—that's the skeleton. But the book lives in the heavy, wet air of the place, the way the island's history of a lost community seeps into her present. It's less about what happens next and more about the slow, inevitable saturation of grief and memory, how the past isn't really past. The island itself feels like the main character, pushing back against her clinical observations with its own damp, persistent truth.
I kept waiting for a big twist or reveal, and it never came in the way I expected. The climax is internal, a quiet yielding rather than a dramatic confrontation. Some reviewers called it slow, and I get that, but the pace feels intentional, like water wearing away stone. You finish it feeling changed, but not because of plot points—because the atmosphere got under your skin.