Used book – Jessica and the Dolphins: Prince of the Seas, Lucy Daniels, Véronique Fleurquin

Off the coast of the Polynesian islands, the crew of the Blue Star discover spinner dolphins, true acrobats that perform prodigious leaps! Jessica takes a liking to the most graceful of them, and names him Star. Alas, like all other dolphins, this "prince of the seas" is used by fishermen to bait tuna. One day, Star finds himself trapped in the tuna fishing nets...