The book follows a brilliant and dedicated scientist who successfully trains dolphins to communicate in English. His ultimate goal is for them to become the world's first underwater spies, capable of infiltrating enemy territories undetected. However, his plans are derailed when the dolphins are kidnapped for a sinister plot to assassinate the President. The scientist must race against time to save both his dolphins and the President.

Set in the lush and treacherous Sundarbans of India, the story follows Piya, a marine biologist, and Kanai, a businessman, as they navigate the complex interplay of human and natural forces in this unique ecosystem. Piya's quest to study the rare Irrawaddy dolphins brings her into contact with the local fisherman, Fokir, whose deep understanding of the tides and terrain contrasts sharply with Kanai's urban sophistication. As their paths intertwine, the characters confront issues of environmental conservation, cultural heritage, and survival, revealing the profound and often perilous connections between people and their environment.

In this science fiction novel, a spaceship crewed by a unique ensemble of genetically enhanced dolphins, a few humans, and a chimpanzee, finds itself stranded on a water world after a disastrous first contact with an alien fleet. The crew, aboard their vessel designed for interspecies cooperation, must navigate complex social dynamics and external threats as they repair their ship. Meanwhile, they are caught in the crossfire of a galactic conflict, with various alien races eager to capture the ship's secrets, including the knowledge of a long-lost fleet of starships from a mysterious and powerful race. The crew's survival hinges on their ability to work together and utilize their combined intelligence, while they also grapple with the implications of their evolutionary advancements and the responsibilities that come with them.