AQUAMARINE is set in the late 21st Century when major land masses have been submerged by rising oceans and the Earth is a world of water. Russell is a hydrologist, based on the great floating city of Pacifica. Eric is one of fifty Aquarians, a new sub-species of human who can breathe underwater. When the pair refuse an attractive offer for Eric's services on a suspicious salvage, Eric is kidnapped and a fast-paced intrigue unfolds on the "acorn principle" ... a small event turns out to be the key to a major war which would involve the whole Pacifica region.