Every night, she dreamed of an island with mangrove trees. She woke up as the sole survivor of a shipwreck. They said her name was Kimberly. Was it? She couldn't remember. It all started with the fishermen. One by one, they fell ill and died. When villagers of Tarnstead started to fall ill and act strangely after coming into contact with the sea, the others dissolved into panic. Their only answer? Kimberly, the unscathed one. What was lurking in the murky depths of the sea? How was it connected to the island with mangrove trees? And what was hidden in Kimberly's lost memories?