Now attached to French intelligence, Romane is training hard with agent El Malik and Delph, a genetically modified Dolphin with extraordinary mental abilities. Their goal: to infiltrate Algapower, the company at the heart of their investigation, and to find clues about its true purpose - in particular the mysterious Mermaid Project. What is the aim of Algapower's genetic research? Time is running short for Romane and her team.

Romane Pennac's niece has been kidnapped in Paris. Her genetic makeup, inherited from the experiments conducted on her mother - and Romane - in her youth, make her a perfect candidate for Algapower's hybridisation experiments. Hell bent on rescuing her and putting an end to the corporation's actions, El Malik and Pennac attempt a daring raid on Algapower's Rio laboratory. But when things go wrong, they'll find some very strange allies indeed...

Romane has gone to Brazil, hoping to renew contact with Delphis, her dolphin friend, and find an explanation to the ongoing attacks by sea mammals against human ships and ports. Meanwhile, Brahim and Kruger continue their investigations in Mozambique. But their enemies, the white supremacists who still run Algapower, and their terrorist allies from the American White Army, know they're being hunted, and have no intention of being stopped again. A fight for the future of several species begins... The conclusion to this sequel to Mermaid Project. Ages 12+

Two years have passed since the events of Mermaid Project, and Romane and Brahim have paid the price of their courage and integrity. Ignored, even censored, by their superiors, they're now reduced to taking lousy private eye jobs to earn a living. Meanwhile, though, the same cetaceans whose advanced intelligence the UN had refused to believe in are attacking fishing trawlers ... with rockets! Before long, the authorities ask our two investigators to take their old jobs back...

Paris, end of the 21st Century. Inspector Romane Pennac is the only white woman in her station. The world has suffered devastating wars and ecological disasters, and the old powers of Europe and America are now the third world. Yet it is toward the young woman, now a member of a discriminated-against minority, that a couple of devastated parents turn. A mysterious letter has just announced to them that the body of their daughter, recently deceased in New York, isn't in her coffin...

Roger, Romane's brother, has been transferred to an Algapower lab in Brazil. Shortly afterwards, his sister, still working for Intelligence, arrives in Rio. Her new mission: to get in touch with her brother and convince him to inform the authorities on the company and its mysterious Mermaid Project. The stakes have changed for the Pennac siblings, though: among the documents retrieved during the New York mission, their names appear on a list of potential test subjects...

Romane and Brahim have reached Algapower's artificial island, with the help of some cetaceans with a quite extraordinary behaviour. All they need to do now is sneak into the laboratories, locate Romane s kidnapped niece, and find a way to escape with her before the corporation s mad scientists transplant a dolphin's tail onto her. Not an easy task, especially as Algapower's found some ruthless allies. But the two agents, too, have some rather unexpected allies - and a revolution is coming...