Speculative fiction is a broad umbrella category of narrative fiction referring to any fiction story that includes elements, settings and characters whose features are created out of imagination and speculation rather than based on attested reality and everyday life. That encompasses the genres of science fiction, fantasy, science fantasy, horror, alternative history, and magic realism.
They watched in horror as humanity destroyed itself in a nightmare of biological warfare. Now they trapped in the Dome - a vast underwater laboratory designed to become, one day, a self supporting world. One day but not yet.
Scientists and technicians and bureaucrats and the special ones; a man fish whose mutant tissue might hold the future of mankind; Patricia Ishida, able to interface directly with the most advanced computers of the age. These are citizens of Dome, sentenced to the endless night of the ocean floor.