Samantha is bored out of her skull. She lives on an island, her entire world is covered in ocean, and she’s explored pretty much every crusty corner of the sunken city that surrounds her home. She’s just about accepted a tedious, excitement-free life when a contest with a rival diver sends her deep into the sunken city’s forbidden zone, where she discovers a pathway to a world more exciting, and more dangerous, than anything she’d ever imagined– one full of uncharted lands, mysterious creatures, and the mythical Thanatos Diver who, depending on the teller, is rumored to either save both worlds or destroy them…